This volume is a timely study of recent researches in the prehistory of the Indian subcontinent, highlighting regional and subregional variations. The first three essays in this volume are extremely valuable in their critical stocktaking of prehistoric research, palaeontological studies and palaeoenvironmental reconstructions in the subcontinent. The regional and subregional variations of prehistoric cultures are brought out in papers focusing on a variety of areas like the Son Valley, the Narmada, the Hunsgi valley, the Teri dune sites and the central Ganga valley where research has continued for over three decades. Essays on lesser known areas like the Ayodhya hill region of West Bengal, cave sites in the limestone karst zone of Nagaland bordering upon Myanmar and the Chakalpunji area in north-eastern Bangladesh add to our knowledge with their unique findings.