Doubts for income tax

1.it assessee postal RD maturity amount received.but assessee postal monthly payments deposit amounts transactions not show in books.
2.it assessee sft -004 cash deposits in bank sb account rs:12 lacs.cash withdrawal amount rs:10 lacs as per AIS information.
question:
1.postal rd maturity amount credited by capital account in books accepted in it act.
2.sft -004 cash deposit rs:12lacs-cash withdrawal rs:10lacs difference amount cash at bank treatment in it act.