Hi Surya!

It totally depends on one's interest which book he or she wants to read. It varies from individual to individual. Pankaja Naik book is very good book for 1st year MBBS biochemistry.It has explained the content pretty well in a very short and simple manner. It covers all the diagrams and flow charts for better understanding of concept. As per the reviews, Vasudeven has glossy pages which attracts students. vasudeven explains the topics in a very lenghty and descripltive manner which some students find complex.

Hope it helps, thankyou!