Integration is a very important chapter so you should do a lot of practice in this chapter, so I'm suggesting you some books:
Ncert is a must as it will strengthen your concepts for this chapter .
IA Maron calculus books are good for both definite and indefinite integration . Various problems with solutions are provided in this book, so you can practice a lot of sums from this book.
Arihant integral calculus , solved examples are very useful
A textbook of integral calculus by Amit M. Agrawal
You can try for Cengage books as well.