Second year is a very vital year for forming a strong basis for clinical sciences.
For pathology:
Robbin's Pathologic Basis of Disease is absolutely indispensable.
If you can then please get the Pathoma videos. Dr Sattar is amazing.
He will really TEACH you pathology. I literally mugged up the whole of MCI syllabus from Robbin's. I could visualize pages of the text during the exams. But still Dr Sattar had new things to teach me. I would give this combo a five stars. If you can do Goljan Rapid Review with it, it would be just amazing.
Pharmacology: I had studied Tripathi. But in the long run it didn't really help me during clinicals. I don't know if it's because the book is very poorly written (probably) or if it was the way I studied it.
If I could go back, I would probably study, Kaplan Pharmacology (the review books for USMLE) along with Tripathi (or any other good text book that you like reading)
Kaplan really gives you the important practical stuff that you need to know for practice of medicine. Reading a large text book like Tripathi, it's very easy to get lost and not be able to differentiate the important from the useless stuff.
Microbiology: Paniker is supposed to be really good. I regret not reading it. Along with that I would again suggest Kaplan Microbiology. If you find microbio difficult, you may want to check out Microbiology made ridiculously simple. I never liked it though.
Preventive: I thought Park was a really good text book.
Forensic: IDK, I never really read it much. Do whatever is popular in your college.
If you are planning for Indian PG. It would be best to study the relevant MCQs along with your second year prep. If you are planning for USMLE then you probably know the drill.
I hope that was helpful. Let me know if you have any questions.
Good luck.
