It is recommended that you write this Class 12 Biology Project (Herpetological Diversity of Maharashtra) on your own. To aid you with your project and for some reference, I am providing you some links (Copy Paste the desired link in the web browser) -

(1) Herpetological observations from field expeditions to North Karnataka and Southwest Maharashtra, India (published by National Reptile Zoo) - https://www.nationalreptilezoo.ie/wp-content/uploads/2015/04/Herpetological-observations.pdf

(2) Herpetofauna of Maharashtra Nature Park, Mumbai, Maharashtra (India) - https://environmentaljournals.org/storage/models/article/HtbkKmB0QEZx3cz1FyxaItj6HOrOhUtzCK8F5B8QJOdz4S9ZXJHr8WLgbcd2/herpetofauna-of-maharashtra-nature-park-mumbai-maharashtra-india.pdf

(3) 12th Biology project on Herpetological diversity of Maharashtra (YouTube Video) - https://www.youtube.com/watch?v=HQyCRZIPA0E