**Acknowledgements**

I thank Yogesh Mallinathpur, Yezad Pardiwalla and Martina Narzary for providing preliminary minimum counts of Lower, Middle and Upper Paleolithic sites respectively, as discussed in this paper. Photographs of some of the lithic specimens were generously provided by Nupur Tiwari, Vivek Singh and Shashi Mehra. Comments from the reviewers helped improve the paper and are appreciated.
