A. K. MoitraDr. Ajoy Kumar Moitra received his graduate and Doctorate from Indian School of Mines, Dhanbad. He joined the Geological Survey of India and retired in the year 2004 as Director. During his stay in Geological Survey of India (1971-2004), he carried ot systematic mapping and exploration. He was engaged in study of stromatolites and related microbiota. After retirement, Dr Moitra carried out detailed exploration for coal, iron ore and limestone for both green and brown fields. Apart from many papers in prestigious journals, he has written two books. Read More Read Less