Hello Majumder
There are many books available for that like
Information Technology Law and Practice -Book by Vakul Sharma
Here is the book "Information Technology Law and Practice- Cyber Laws and Laws Relating to E-Commerce"
You can also purchase online through amazon
https://www.amazon.in/Information-Technology-Practice-Relating-Commerce/dp/9350358913
Good luck.

Hello, 

These are some of the pdfs of the books for information technology law and practice. 

https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://jennybassireg.files.wordpress.com/2017/04/information-technology-law-and-practice-law-emerging-technology-cyber-law-e-commerce-by-vakul-sharma.pdf&ved=2ahUKEwjX0bW9nLTfAhVJqI8KHXDPAroQFjABegQIChAB&usg=AOvVaw2ipuJNUSwqkc17WSmrLC-t

https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://larson-6f96b.firebaseapp.com/dd438/information-technology-law-and-practice-law-emerging-technology-cyber-law-e-commerce-by-vakul-sharma-9350350009.pdf&ved=2ahUKEwjX0bW9nLTfAhVJqI8KHXDPAroQFjACegQICRAB&usg=AOvVaw0vTFRVyUapBgoURZQx9V6x

https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://www.bookdepository.com/Information-Technology-Law-Practice-Vakul-Sharma/9789350350003&ved=2ahUKEwjX0bW9nLTfAhVJqI8KHXDPAroQFjAHegQIAhAB&usg=AOvVaw3eSlGGdHJTqK9wDnKRA6rh

https://www.google.co.in/url?sa=t&source=web&rct=j&url=http://shodhganga.inflibnet.ac.in/bitstream/10603/113328/6/chapter%2520i.pdf&ved=2ahUKEwjX0bW9nLTfAhVJqI8KHXDPAroQFjAIegQIBBAB&usg=AOvVaw3cc369VNtux6JZhOZEBqrg

Hope you might find them helpful ...