IDT Book of Deepak Gupta

No...

Never try to his book... he has made many mistake intentionally in his book which he ractify in his class....

for self study refer Banger Sir book.... and refer only one book....

DK scanner is good. but Assignment is good for those who take his classess.

DG is not good sor self study, 

CCR chapter is really very well explained in DG Assignment.

BANGAR IS GOOD BOOK

For self study refer the Bangar sir book or Vaitheshwaran's book. Vaitheshwaran book is publshed by snowwhite publications and it is recommended by the ICAI.