The driving licence is renewed with effect from the date of its expiry when the application is made before its expiry or within thirty days grace period. The driving licence is renewed with effect from the date ofrenewal when the application is made after the grace period.
FORM OF APPLICATION FOR THE RENEWAL OF DRIVING LICENCE
https://parivahan.gov.in/sarathiservice7/stateSelection.do http://transport.bih.nic.in/Forms/Form-09.pdf