Triassic conodonts and fish remains from Niti Pass, Kumaun Himalaya - 1973
Bivalves from the Eocene Rocks of the Garhwal Synform, U.P. - 1979
Lower Palaeozoic cystoids and crinoids from Ladakh - 1981
Early Cambrian (Tommotian) conodonts and other shelly microfauna from the upper Krol of Mussoorie Syncline, Garhwal Lesser Himalaya with remarks on the Precambrian-Cambrian boundary - 1983
On the new Eocene mammal localities in the Himalayan foot-hills - 1983