Singareni Collieries Company
Native name | ది సింగరేణి కాలరీస్ కంపెనీ లిమిటెడ్ |
---|---|
Company type | State Government Corporation |
Industry | mining mining of hard coal |
Founded | 23 December 1920 |
Headquarters | Kothagudem, Bhadradri Kothagudem district, & Ramagundam Telangana |
Area served | 350 km of Pranahita - Godavari Valley of Telangana State, Covering 6 Districts |
Key people | Shri. N .Balram, IRS Director (Finance And (PA & W) , Chairman & Managing Director ( SCCL) |
Products | Coal Mining & Power |
Owner | Department of Energy, Government of Telangana |
Website | scclmines |
The Singareni Collieries Company Limited or SCCL is a government-owned-coal mining corporation in India. It is under the ownership of Department of Energy, Government of Telangana. The Union Government's administration of the company is through the 49% ownership held by Ministry of Coal. SCCL is currently operating 40 mines where 18 opencast and 22 underground mines in 6 districts of Telangana (restwhile 4 districts of AP) with a manpower around 39,856 as of November 2023. SCCL is contributing 9.2% in the all India Domestic Production. Since inception (1889) 1.36 BT of Coal is extracted by SCCL and it has proved reserves of 10.84 BT.
History
[edit]In the year 1871, NIZAM's Ruled Dr.William King of the Geological Survey of India discovered coal near Yellandu in Khammam district and one of the important coal seams bore his name. He named the upper seam of the coal as Queen seam and the lower seam as King seam. The Hyderabad (Deccan) Company Limited incorporated in England acquired mining rights in 1886 to exploit coal found in Yellandu area. The present Company was incorporated on 23 December 1920 under the Hyderabad Companies Act as a public limited company with the name 'The Singareni Collieries Company Limited' (SCCL). It acquired all the assets and liabilities of the Hyderabad (Deccan) Co. Ltd. Best & Co., acted as Secretaries and Selling Agents. The State of Hyderabad purchased majority shares of the Company in 1945. From 1945 to 1949, the Hyderabad Construction Co., Ltd., was acting as Managing Agent. In 1949 this function was entrusted to Industrial Trust Fund by the then Government of Hyderabad. The controlling interest of the Company devolved on the Government of Andhra Pradesh in 1956 pursuant to the reorganization of States. Thus, the SCCL became a Government Company under the Companies Act in 1956.
It is named after the village Singareni in Khammam district, Telangana where the coal mines are first noticed . The manner of extending financial assistance for expansion of SCCL by the Govt. of A.P., and the Govt. of India during V plan period was agreed upon in the Four party Agreement executed on 10 June 1974. Subsequently, the Govt. of India decided to control its equity directly in SCCL. Accordingly, agreement was concluded on 13 December 1977. The SCCL, the Government of A.P., the Government of India and Coal India Limited were parties to the agreement. These two agreements are popularly called quadripartite agreements.
For financial and other assistance during VI, VII, VIII, IX & X Plan periods, separate agreements were executed on 31 March 1985, 10 February 1989, 24 September 1994, 11 January 2002, 19 October 2004 and 11 June 2010 between the Government of India, the Government of Andhra Pradesh and SCCL. These agreements are called tripartite agreements.
The company's accredited function is to explore and exploit the coal deposits in the Godavari valley coalfield, which is the only repository of coal in South India. Mining activities of SCCL are presently spread over six districts of Telangana Viz., Komaram Bheem, Mancherial, Peddapalli district, Jayashankar Bhupalpalli, Bhadradri Kothagudem and Khammam Districts.
The studies of Geological Survey of India attribute as much as 22,016 million tonnes of coal reserves in the Godavari valley coalfield. The inventory covers up to a depth of 1,200 metres (3,900 ft) and it includes reserves proved, indicated as well as inferred.
The coal extracted by SCCL in the Godavari valley coalfield up to the year 2009-10 was about 929.11 million tonnes.
The Mile Stones of SCCL in introducing New Technologies
[edit]SCCL is a pioneer in India in introduction of new technologies.
Year | Technology Description | Remarks |
---|---|---|
2020 | 300 MW Captive Solar Power Plants | Started generating Solar Power for Captive use |
2016 | 2 X 600 MW Thermal Power Plant | First Government Coal Company generating Thermal Power for Commercial use |
2015 | Mine Cruiser | |
2014 | High Capacity LW at Adriyala | |
2010 | High Wall Mining | |
2011 | Processed Over Burden started at Bhupalpally | Used as stowing material in the UG Mines as an alternate of scarce of River sand.
Achieved "Golden Peacock Innovative Product/Service Award" in 2015 at Dubai. |
2009 | Light Weight Cap Lamps | Implemented in all UG mines |
2008 | Diesel Operated UG Machinery | |
2008 | ERP (SAP) | First Government Coal Company to introduce SAP |
2007 | 3D Laser Scanner | Used for mine surveying |
2003 | Phasing Out Manual Coal filling launched | |
2002 | Man-Riding System in Conventional Mines | To reduce travelling time and fatigue of workmen. |
1994 | In-pit Crushing and Conveying | |
1989 | French Blasting Gallery Method | |
1986 | Walking Dragline | |
1983 | Long Wall Mining | |
1981 | Load Haul Dumpers and Headers | |
1979 | Side Discharge Loaders | |
1975 | Open Cast Mining | |
1954 | Flame Proof Electric Equipment | |
1953 | Electric Cap Lamps | |
1951 | Electric Coal drills | |
1948 | Machine Mining (Joy loader and Shuttle cars) |
Production & Dispatch
[edit]Coal Production, Coal dispatch and OB removal of SCCL
Year | Production (MT) | Coal Dispatch (MT) | OB Removal (M.Cu.Mt) | No. of Employees | |
---|---|---|---|---|---|
2023-24 | 70.02 | 69.86 | 420.32 | 41837 | |
2022-2023 | 67.14 | 66.69 | 410.11 | 42733 | |
2021-22 | 65.02 | 65.52 | 383.39 | 43672 | |
2020-21 | 50.58 | 48.51 | 322.00 | 43895 | |
2019-20 | 64.04 | 62.46 | 348.97 | 46021 | |
2018-19 | 64.40 | 67.67 | 386.36 | 48942 | |
2017-18 | 62.01 | 64.62 | 392.75 | 54043 | |
2016-17 | 61.34 | 60.83 | 315.00 | 56282 | |
2015-16 | 60.38 | 58.68 | 310.76 | 58491 | |
2014-15 | 52.54 | 52.73 | 262.82 | 58837 | |
2013-14 | 50.47 | 47.94 | 170.29 | 61778 | |
2012-13 | 53.19 | 53.34 | 175.84 | 64600 | |
2011-12 | 52.21 | 51.50 | 209.73 | 66466 | |
2010-11 | 51.33 | 50.14 | 216.96 | 67615 | |
2009-10 | 50.43 | 49.37 | 247.05 | 69043 | |
2008-09 | 44.54 | 44.41 | 184.64 | 70586 | |
2007-08 | 40.60 | 41.79 | 140.72 | 75573 |
Coal Production Technology Wise
[edit]Year | Hand Section | Semi-Mechanised
(SDL & LHD) |
Mechanized
(Longwall, Continuous Miner RH, HW Bolter Miner) |
UG (Total) | OC (Total) | Total |
---|---|---|---|---|---|---|
2019-20 | 0 | 8.66 | 55.37 | 64.04 | ||
2018-19 | 0.02 | 9.17 | 55.23 | 64.40 | ||
2017-18 | 0.15 | 6.9 | 1.27 | 8.31 (13%) | 53.70 | 62.01 |
2016-17 | 0.23 | 7.31 | 1.98 | 9.52 (16%) | 51.82 | 61.34 |
2015-16 | 0.44 | 7.28 | 2.94 | 10.65 (18%) | 49.73 | 60.38 |
2014-15 | 0.73 | 6.85 | 2.62 | 10.20 (19%) | 42.34 | 52.54 |
2013-14 | 1.17 | 7.17 | 2.21 | 10.55 (21%) | 39.92 | 50.47 |
Coal Production in Grade-Wise
[edit]More than 80% of SCCL coal production is between G9 to G17.
Grade | GCV in
K.Cal/Kg |
% in Total | Grade | GCV in
K.Cal/Kg |
% in Total | |
---|---|---|---|---|---|---|
G1 | Above 7000 | - | G10 | 4301 - 4600 | 17.5 | |
G2 | 6701 - 7000 | - | G11 | 4001 - 4300 | 18.7 | |
G3 | 6401 - 6700 | - | G12 | 3701 - 4000 | 3.0 | |
G4 | 6101 - 6400 | - | G13 | 3401 - 3700 | 18.7 | |
G5 | 5801 - 6100 | 1.5 | G14 | 3101 - 3400 | 4.3 | |
G6 | 5501 - 5800 | - | G15 | 2801 - 3100 | 4.8 | |
G7 | 5201 - 5500 | 10.1 | G16 | 2501 - 2800 | 1.4 | |
G8 | 4901 - 5200 | 6.6 | G17 | 2201 - 2500 | 0.6 | |
G9 | 4601 - 4900 | 12.5 | UG | Below 2200 | 0.4 |
Coal off-take Sector Wise
[edit]The SCCL mode of transport of coal is through Rail (NGSR)65%, MGR 15% (Merigold Rail), Road 19% and through Rope 1%.
Year | Power
(Utility) |
Power
(Captive) |
Cement | Other | Total |
---|---|---|---|---|---|
2017-18 | 53.88 | 2.78 | 2.57 | 6.27 | 65.50 |
2016-17 | 50.66 | 1.80 | 2.24 | 6.12 | 60.82 |
2015-16 | 47.32 | 2.01 | 3.14 | 6.21 | 58.68 |
2014-15 | 39.21 | 2.40 | 4.64 | 6.48 | 52.73 |
2013-14 | 34.27 | 2.54 | 4.93 | 6.20 | 47.94 |
2012-13 | 38.16 | 3.15 | 5.48 | 6.55 | 53.34 |
Quality of Coal
[edit]A 3rd party sampling: It is introduced from 28.07.2016 first with NTPC. The CIMFR is the third party agency all SCCL dispatch points and now presently it is implemented with all power consumers.
Washing of Coal: 3 washeries with 1MTPA capacity each in operation. Two more coal washeries with 7 MTPA total capacity are in pipeline.
Power Generation
[edit]2 X 600 MW Singareni Thermal power Plant at Jaipur, Mancherial district
Unit-1 COD at 25.09.2016 and Unit-2 COD at 02.12.2016
Year | Generation | Export | PLF | ||||||
---|---|---|---|---|---|---|---|---|---|
Unit#1 | Unit#2 | Station | Unit#1 | Unit#2 | Station | Unit#1 | Unit#2 | Station | |
2021-22 | 9352.93 | 8807.57 | 88.97 | ||||||
2020-21 | 7345.06 | 6895.33 | 69.87 | ||||||
2019-20 | 9226.88 | 8672.32 | 87.53 | ||||||
2018-19 | 4455.09 | 4243.39 | 8698.48 | 4203.42 | 4007.60 | 8211.02 | 84.76 | 80.73 | 82.75 |
2017-18 | 4606.07 | 4969.19 | 9575.26 | 4335 | 4668 | 9004.02 | 87.63 | 94.54 | 91.09 |
2016-17 | 2098.03 | 1443.43 | 3541.46 | 1962 | 1350 | 3311.82 | 77.79 | 84.03 | 80.22 |
Jun 2016
to COD |
455.85 | 252.06 | 707.91 | 634.31 | |||||
Total | 22523.11 | 21161.17 |
New mines in near future
[edit]SCCL is planning to open 14 mines (6 new Underground mines and 8 opencast mines) with a capacity addition of 52.37 MT in next 5 years.
Sl.No | New Project | OC/UG | Capacity in MTPA |
---|---|---|---|
1 | Kasipet- 2 incline | UG | 0.470 |
2 | KK-6 Incline | UG | 0.800 |
3 | Kondapuram Mine | UG | 0.700 |
4 | Rampuram Shaft Block | UG | 1.400 |
5 | KTK-3 Incline with LW | UG | 1.000 |
6 | Expansion of KTK-5 Incline with LW | UG | 0.700 |
7 | Indaram OCP | OC | 1.200 |
8 | KOC - III | OC | 3.600 |
9 | Kistaram OCP | OC | 2.000 |
10 | KTK OC-III Project | OC | 2.500 |
11 | Sravanapalli OC | OC | 3.000 |
12 | GDK - 10 OC | OC | 5.000 |
13 | Naini Block (Odisha) | OC | 10.00 |
14 | Patrapada (Odisha) | OC | 20.00 |
Total | 52.37 |
New Mines opened
[edit]New mines which are opened in past 5 Years
Year | No. of Mines | Total rated capacity (MTPA) | Name of the projects |
---|---|---|---|
2017 - 18 | 3 | 13.50 | JVR OCII
KK OC KTK OCII |
2016-17 | 2 | 2.50 | MNG OC
BPA OCII |
2015-16 | 1 | 2.00 | RG OC III Exp. Ph-2 |
2014-15 | 1 | 2.81 | Adriyala Shaft Project |
2013-14 | - | - | - |
2012-13 | 2 | 5.00 | JK5 and
RKP |
SCCL Future Targets
[edit]SCCL has a vision for 2023–24 to reach:
- Production and Dispatches of 85.00 Metric Tons
- Over Burden Removal of 600 Million Cubic Meters
- Gross sales of Rs. 340 billion
- Profit of Rs. 25 billion
- Power generation of 2,500 Megawatts
Profit Sharing to miners
[edit]SCCL offering profit share to miners, which began in 1999–2000 with 10% bonus.
Year | Company Profit after Tax
(Crores) |
Profit Share as Bonus
(Crores) |
Percentage % |
---|---|---|---|
2021-2022 | 1227.04 | 368.11 | 30 |
2020-2021 | 272.20 | 79.09 | 29 |
2019-2020 | 993.86 | 278.28 | 28 |
2018-2019 | 1766.66 | 494.66 | 28 |
2017-2018 | 1212 | 327.24 | 27 |
2016-2017 | 395.38 | 98.84 | 25 |
2015-2016 | 1066.13 | 230.26 | 23 |
2014-2015 | 490.44 | 103.11 | 21 |
2013-2014 | 419 | 83.63 | 20 |
2012-2013 | 401 | 71.05 | 18 |
2011-2012 | 359 | 60.09 | 17 |
2010-2011 | 351 | 56.17 | 16 |
2009-2010 | 286.01 | 42.88 | 16 |
2008-2009 | 132.83 | 21.25 | 16 |
2007-2008 | 176.17 | 28.19 | 16 |
2006-2007 | 63.83 | 9.57 | 15 |
2005-2006 | 184.63 | 22.15 | 15 |
2004-2005 | 361.25 | 43.35 | 12 |
2003-2004 | 164.44 | 19.73 | 12 |
2002-2003 | 417 | 45.87 | 11 |
2001-2002 | 290 | 29 | 10 |
2000-2001 | 85 | 8.5 | 10 |
1999-2000 | 300 | 30 | 10 |
Succession of Administrators
[edit]Sl. No. |
Years | Name | Designation | Highest Degree |
Notes |
---|---|---|---|---|---|
1 | 1921 - 1934 | Sir Gordon Fraser,[1] OBE | Chairperson (CP) | ||
2 | 1934 - 1942 | Mr. L. C. Croslegh[2] | CP | ||
3 | 1942 - 1945 | Sir Robert Denniston,[3] OBE | CP | ||
4 | 1946 | Mr. Zahid Husain, C. I. E. | CP | ||
5 | 1947 | Nawab Liakat Jung Bahadur[4] | CP | ||
6 | 1948 | Nawab Moin Nawaz Jung Bahadur | CP | ||
7 | 1948 - 1949 | Mr. D. R. Pradhan,[5] I. C. S. | CP | ||
8 | 1949 - 1952 | Mr. C. V. S. Rao,[6] C. I. E. | CP | ||
9 | 1952 - 1956 | Dr. G. S. Melkote | CP | M.B.B.S.[7] | |
10 | 1956 - 1957 | Mr. K. Venkata Rao | CP | PUC | |
11 | 1957 - 1958 | Mr. S. J. Tarapore[8] | CP | ||
12 | 1959 | Mr. P. M. Nayak,[9] I.C.S. | CP | BSc | |
13 | 1959 | Mr. R. Prasad,[8] I.C.S. | CP | ||
14 | 1960 | Mr. R. S. Krishnaswamy,[9] I.C.S. | CP | M. A.[10] | |
15 | 1961 | Mr. P. M. Nayak,[11] I.C.S. | CP | BSc[12] | |
16 | 1962 - 1964 | Mr. M. P. Pai,[13] I.C.S. | CP | ||
17 | 1964 - 1972 | Mr. V. K. Rao,[14] I.C.S. | CP | ||
18 | 1972 - 1974 | Mr. K. I. Vidyasagar,[15] I. A. S. | Chairperson-cum- Managing Director (CMD) |
||
19 | 1974 - 1978 | Mr. B. N. Raman,[16] I. A. S. | CMD | ||
20 | 1979 - 1981 | Mr. C. N. Sastry,[17] I. A. S. | CMD | ||
21 | 1981 - 1982 | Mr. S. Santhanam,[17] I. A. S. | CMD | M. A.[18] | |
22 | 1982 | Mr. P. K. Doraiswamy,[16] I. A. S. | CMD | BSc (Hons., Madras)[19] | |
23 | 1982 - 1983 | Mr. A. Valliappan,[20] I. A. S. | CMD | M. A.[21] | |
24 | 1983 - 1984 | Mr. K. M. Ahmad,[22] I. A. S. | CMD | M. A.[23] | |
25 | 1984 - 1987 | Mr. G. P. Rao,[24] I. A. S. | CMD | BSc[25] | |
26 | 1987 - 1990 | Mr. V. Govindarajan,[26] I. A. S. | CMD | B. A. (Hons.)[27] | |
27 | 1990 - 1992 | Mr. A. Valliappan,[20] I. A. S. | CMD | M. A. | |
28 | 1992 | Mr. R. V. Krishnan,[28] I. A. S. | CMD | M. A.[29] | |
29 | 1992 - 1996 | Mr. P. P. Williams, I. A. S. | CMD | MSc (Andhra) | |
30 | 1996 | Mr. M. C. Mahapatra,[30] I. A. S. | CMD | M. A.[31] | |
31 | 1996 | Mr. P. V. Bhide, I. A. S. | CMD | M. B. A.[32] | |
32 | 1997 - 2001 | Mr. A. P. V. N. Sarma,[33] I. A. S. | CMD | B. E. (REC)[34] | |
33 | 2001 - 2006 | Mr. R. H. Khwaja,[35] I. A. S. | CMD | M.A. (Aligarh)[36] | |
34 | 2006 - 2012 | Mr. S. Narsing Rao,[35] I. A. S. | CMD | MSc (Osmania)[37] | |
35 | 2012 - 2014 | Mr. Sutirtha Bhattacharya, I. A. S. | CMD | BSc (Calcutta) | |
36 | 2015 - 2023 | Mr. N. Sridhar, I. A. S.[38] | CMD | B. E. | |
37 | 2023-"present" | Mr. N. Balram, I.R.S | Chairman & Managing Director (CMD) |
Awards and recognition
[edit]- India's Best Company Award
- "Asia Pacific Entrepreneurship Award 2018" from Enterprise Award.
- "National award for excellence in Cost Management in 2016 in Large Mining PSUs Division" from the institute of Cost Accounts of India.
- "Golden Peacock Innovative Product/ Service Award 2015".[39]
- The Singareni Collieries Company Limited (SCCL) received the Indira Gandhi Vriksha Mitra Award - 2004 for outstanding contributions made in the field of afforestation and waste land development on 5 June 2007, at New Delhi.
- Environmental Excellence award for 2005-06 from Society for Research and Initiatives for Sustainable Technologies and Institution (SRISTI), New Delhi.
- Environmental excellence Award from Green Tech Foundation in 2005–06.
- "Golden Peacock Innovation Management Award 2005" from the Institute of Directors, New Delhi.
- "Golden Peacock Environment Management Award 2005" from World Environment Foundation, New Delhi.
- "National Fly Ash Utilization Award 2005" jointly instituted by the Ministry of Environment and Forests, Power and Science and Technology, Government of India.
- The Second Best Corporate Film Award 2005 by Public Relations Society of India, Hyderabad for "Shramika Bandham" a telefilm.
- Three of the fourteen "National Safety Awards (Mines)" instituted by the Directorate General of Mines Safety, Government of India in 2004 (pertaining to 2001).
- "Best Workers Welfare Activity Award" for 2003-04 by the Federation of Andhra Pradesh Chamber of Commerce and Industry (FAPCCI).
- "Best Overall Performance Award" for 2002-03 by the Federation of Andhra Pradesh Chamber of Commerce and Industry (FAPCCI).
- "Best Management Award" for 2001-02 by the Government of Andhra Pradesh.
Operations
[edit]The company is involved in coal extraction in Telangana, in the Pranahita-Godavari Valley region, which has significant coal reserves, estimated at 879 billion tonnes. Ramagundam is one of the most important divisions of the Singareni Collieries Company. There are three divisions (RG-1, RG-2 and RG-3) and Adriyala project area in Ramagundam region. Each division is headed by a General Manager.
Singareni Collieries has established a thermal power plant of 1,200 MW (2 X 600 MW) in the town of Jaipur in the Srirampur region in Mancherial district. There is a proposal to establish one more 800 MW unit at the Jaipur power plant. SCCL has planned for a 300 MW Solar Power Plant for its captive use in its coal mining areas.
The Coal Mines Provident Fund Head Offices are located at Kothagudem, Ramagundam, Godavarikhani and Hyderabad, serving the needs of 4 regions.
See also
[edit]References
[edit]- ^ Transactions of the Mining, Geological, and Metallurgical Institute of India, Volume 17, 1923, p.248.[1]
- ^ The Mining Year Book, W.R. Skinner and Financial Times, 1936, p.539.[2]
- ^ S. Srinath, Methods of Recruitment in the Signareni Collieries 1946-56, Proceedings of the Indian History Congress, Volume 48, 1987, pp. 579-585.[3]
- ^ The Hyderabad Government Bulletin on Economic Affairs, Volume 1, Hyderabad, 1948.[4]
- ^ Lionel Carter (Edited), Towards a Ceasefire in Kashmir: British Official Reports from South Asia, 18 September - 31 December 1948, Routledge, Abingdon, 2018.[5]
- ^ The Hyderabad Government Bulletin on Economic Affairs, Volume 4, Issues 9-11, 1951, p.631.[6]
- ^ P. Rajeswar Rao, The Great Indian Patriots, Volume 2, Mittal Publications, New Delhi, 1991, p.118.[7]
- ^ a b The Madras Stock Exchange Official Year-book, Madras Stock Exchange Limited, Madras, 1957, p.751.[8]
- ^ a b Kothari's Economic Guide and Investors' Handbook of India, Volume 2, 1961, p.194.[9]
- ^ Annual List of Gazetted Officers in the Andhra Pradesh State, Andhra Pradesh (India) General Administration Department, Government of Andhra Pradesh, 1963, p.xvi.[10]
- ^ Kothari's Economic Guide and Investors' Handbook of India, Volume 2, 1961, p.194.[11]
- ^ Annual List of Gazetted Officers in the Andhra Pradesh State, Andhra Pradesh (India) General Administration Department, Hyderabad, 1963, p.xvi. [12]
- ^ Kothari's Economic Guide and Investors' Handbook of India, 1965, p.198.[13]
- ^ Kothari's Economic and Industrial Guide of India, 1973, p.43
- ^ Civil List of the Indian Administrative Service, Volume 17, 1972, p.2.[14]
- ^ a b E. V. Ram Reddi (Compiled), Report of Enquiry into Certain Transactions of the Singareni Collieries Company Limited, Volume 1, Government Secretariat Press, Hyderabad, 1983, p.69.[15]
- ^ a b Link, Volume 26, Issue 4, 1984, p.32
- ^ ER sheet of S. Santhanam
- ^ Bharatiya Vidya Bhavan
- ^ a b The Civil List of the Indian Administrative Service, Volume 28, 1983, p.5.[16]
- ^ ER sheet of A. Valliappan
- ^ India Today, Volume 9, Issues 1-12, 1984, p.67
- ^ ER Sheet of K.M.Ahmad
- ^ R. Ram Reddy, Industrial Relations in India: A Study of the Singareni Collieries, Mittal Publications, 1990, p.xi.[17]
- ^ ER Sheet of G. P. Rao
- ^ P. L. Diwakar Rao, Public sector in Andhra Pradesh: a handbook & directory : with a special supplement on central sector, Utility Publications, 1988, p.141.[18]
- ^ All India Civil List, 1968, p.360
- ^ The Civil List of the Indian Administrative Service, Volume 37, 1992.[19]
- ^ The Management Accountant, Volume 14, p.529
- ^ Data India, Press Institute of India, Madras, 1996, p.220
- ^ ER sheet of M. C. Mahapatra
- ^ NOCIL Limited, Notice of AGM, 2019
- ^ Dattatreyulu Jammalamadaka, Mining Ideas and Coal: Journey with Singareni, Notion Books, Chennai, 2015.[20]
- ^ Advisors to Governor of Andhra Pradesh
- ^ a b Moid Siddiqui, R. H. Khwaja, The Acrobatics of Change: Concepts, Techniques, Strategies and Execution, Sage, New Delhi, 2008.[21]
- ^ R.H. Khwaja takes over as Director-General of ASCI, The Hindu, 3 January 2017.[22]
- ^ Osmania Universitym Distinguished Alumni
- ^ N. Sridhar the new CMD of SCCL, The Hindu, Hyderabad, 30 December 2014.[23]
- ^ SCCL Bagged Golden Peacock Awards 2015.