Loss my check book somewhere of punjab national bank. What should i do?

Hi, i want to know that i was traveling from agra to delhi by bike through road and in the meanwhile i stopped to eat something and somewhere on the way or around i lost my check book. Please tell me as soon as possible.

thanks in advance.

I think you should file the complaint at the bank branch they will re-issue and stop some fraudy transaction from your old checkbook.