Zoology Cell and molecular bilogy - De Robertis, C.B. Powar Genitics - P.K. Gupta, Gardner, Ahluwalia, Vir Bala Rastogi Invertebrates - R.L. Kotpal, Nigam, Jordan Vertebrates - R.L. Kotpal, Nigam, Jordan and Varma Comparative anatomy of vertebrate zoology - Kent Animal physiology - H.R. Singh, Vander Biochemistry - Harper, Leninger, Stryer, Rao Embryology - Balinsky, A.K. Berry, Vir Bala Rastogi Organic evolution - Veer Bala Rastogi Ecology - P.D. Sharma, Odum, Vir Bala Rastogi and M.S. Jayaraj, Kotpal and Bali Economic Zoology - Shukla and Upadhaya, Kotpal Series, Kotpal- Khetrapal - Aggarwal Ethology - Reena Mathur, Magazines like Science Reporter, Nature etc. General Zoology - Storer and Usurger Physiology - H.R. Singh Evolution - Vir Bala Rastogi A Dictionary of Entomology - Leftwich