• Roy S., Labani,and A. Bhattacharya, Examination of subsurface temperature regime along the proposed tunnel alignment in Loharinag-Pala hydro power project, Uttaranchal. Project Completion Report submitted to Water and Power Consultancy Services (India) Limited, New Delhi, 2005. [Technical Report No. NGRI-2006-EXP-525]
•  Roy S., Labani, A. Bhattacharya, and R. Srinivasan, Comparison of heat flow and heat production regimes in the eastern and western parts of Dharwar Craton, southern India. Project Completion Report submitted to Department of Science and Technology, New Delhi, 2005. [Technical Report No. NGRI-2005-LITHOS-495]

•  Roy S., and Labani, Examination of subsurface temperature regime along the proposed tunnel alignment in Tapovan-Vishnugad hydro power project, Uttaranchal. Project Completion Report submitted to Water and Power Consultancy Services (India) Limited, New Delhi, 2004.

• Rao, R.U.M., R. Srinivasan, G.K.Reddy, S.Roy, Labani Ray, and P. Senthil Kumar, Geothermal regime and radioelemental distribution in the Southern Granulite Terrane, Submitted to Department of Science and Technology, New Delhi, February,2000.

• Rao G.V., S. Roy, Labani Ray, G.K.Reddy, G.Ramacharyulu, and R.U.M. Rao, Geothermal gradient, Thermal Conductivity, Heat flow and Radioelemental studies in the Kokkilimedu area, Tamil Nadu, Submitted to Bhabha Atomic Research Center, Trombay, Mumbai, December, 1999.