Hey Guys here are the resources that you can use for preparation:-
LearnNATA : http://www.learnnata.com/programs
LearnNATA Instagram : @learnnata_architecture
Use Code : LNBA55 (it is only valid till 30th July)
( Do checkout their course guys, I really think it is one of the best both in terms of content and the deal that they are providing)
Books for Nata : https://www.amazon.in/shop/blessedarch?listId=3POA7ABB6PSLR
Follow me Instagram for regular Quizzes.