SELF ASESSMENT TAX .

go and ask bank persons to provide challan

this challan is in vouchers of that date

That code is BSR code .........and challan no .......date of deposit.........

Go to incometaxindia.gov.in and go to oltas & find ur challan status.

Better to Register your PAN No. with NSDL this will benefit you as this shows all TDS, Tax deposited on behalf of your PAN No.

find Link below

https://onlineservices.tin.nsdl.com/TIN/PanRegistration.do

instead you get the challan no. from bank or from oltas it is advisable to register you PAN for future.