Sinha, N.C. and Nair, C.P.P. and Bagchi, S. (1969) Studies on the Hardgrove Grindability of Coals. Journal of Mines, Metals & Fuels, 17 (8). pp. 265-274. ISSN 0022-2755

Sinha, N.C. and Lahiri, A. (1967) Problems of Energy Supply in India During the Fourth Five Year Plan. Journal of Mines, Metals & Fuels, 15 (11). pp. 344-348. ISSN 0022-2755

Sinha, N.C. and Moitra, A.K. and Majumdar, S. (1962) Some Methods for Calculating Hardgrove Grindability Index of Coals. Journal of Mines, Metals & Fuels, 10 (11). pp. 1-6. ISSN 0022-2755

Ghosal, A. and Sinha, B.K. and Sinha, N.C. and Ghosh, S.R. and Das Gupta, N.N. and Lahiri, A. (1959) Statistical Correlations of some Carbonization Test Results of Coals. Journal of Mines, Metals & Fuels, 7. pp. 318-324. ISSN 0022-2755