Specialization :- Organic Evolution, Mammalian Biostratigraphy, Neogene Rodents of the Himalaya.

Papers Published  TIWARI, B.N. 1993. Vertebrate fauna of the Siwalik Group : an overview (In Hindi) . Him. Geol., 14, 83-89.  KUMAR, K., NANDA , A.C. & TIWARI , B.N. , 1996. Rodents from the Oligo -Miocene Kargil Formation, Ladakh , India : biochrono- logic and palaeogeographic implications. N. Jb. Geol. Palaont. Abh., Stuttgart, 202, 383-407.  TIWARI, B.N., 1996. Middle Siwalik Murid rodents from Ladhyani, Bilaspur, H.P. In : PANDE J. et al. , (eds.) Contrib.XV Indian Colloq. Micropal. Strat ., Dehra Dun, 513-518  TIWARI, B.N., 2001. Discovery of hippopotamus skull from the Ladakh. Him. Geol., 22 (2), p. 147. TIWARI, B.N 2001. Comments on article “Acritarchs from mesoproterozoic Chitrakoot Formation Semri Group, Chitrakoot Area. Author : K. Anbarasu, JGSI, 57, 179-183”, Jour. Geol. Soc. India, 57, 561-562. TIWARI, B.N., 2001.  Himalaya Ke Cenozoic Avsad Sanstaron Se Prapt Sthaliya Kashevukeeya Jevashm: Prakashit Tathyon Ke Pariprekshaya Main Kuchchh Naveen Uplabdhyian.  Sankalp, 13, 14-15. Rage Jean-Claude, Baipai, S., Thewissen, J.G.M. & Tiwari, B.N. 2003. Early Eocene snakes from Kutch, Western India with a view of the Palaeophiidae. Geodiversitas, 25 (4), 695-716 Tiwari, B.N. 2003. A late Eocene Juxia (Perissodactyla, Hyracodontidae) from Liyan Molasse, Eastern Ladakh, India. J. Paleo. Soc. Ind., 48, 103-113. Tiwari B.N. 2005. Tertiary Vertebrates from Himalayan Foreland of India: an explication of late Eocene- Oligocene faunal gap. Sp. Vol. No 1. Palaeontol. Soc. Ind., Lucknow. 2, 141-154. Bajpai, S., Kapur, V.V., Das, D.P. & Tiwari, B.N. 2005. First Fossil Marsupials from India: Early Eocene Indodelphis N. Gen. and Jaegeria N. Gen. from Vastan Lignite Mine, District Surat, Gujarat, Western India. J. Palaeontol. Soc. India, 50(1), 147-151. Bajpai, Sunil, Kapur, Vivesh V., Das, D.P., Tiwari, B.N., Saravanan, N. & Sharma, Ritu 2005. Early Eocene Land Mammals from Vastan Lignite Mine, District Surat (Gujarat), Western India. J. Palaeontol. Soc. India, 50 (1), 101-113. Bajpai, Sunil, Kapur, Vivesh V., Thewissen, J.G.M., Das, Debasis P., Tiwari, B.N., Sharma, Ritu & Saravanan, N. 2005. Early Eocene Primates from Vastan Lignite Mine, Gujarat, Western India. J. Palaeontol. Soc. India, 50(2), 43-54. Tiwari, B.N. 2005. Tertiary Vertebrates from Himalayan Foreland of India: an explication of late Eocene–Oligocene faunal gap. J. Palaeontol. Soc. India, 2,141-154.