1) how was money given by you ? was it by cash or cheque?
2)if wife had in turn issued you cheque of rs 9 lakhs and pro note if cheques bounces you can issue legal notice to her to repay loan amount
3) you can file complaint of dishonour of cheque under section 138 Ni
4) also file summary suit to recover the money
6) if amount given by you was a gift wife would not have issued you pr onote nor cheque for loan amount