How do you find out the PUK Code for a BSNL prepaid SIM?

Call service provider they will ask your SIM number,you can get your SIM number back side SIM card or Its available on the receipt you got while you purchase sim card from customer care center. if you missed it somewhere dont worry, contant nearby cellone customer care center they will give you duplicate PUK code.

"The PUK No can be obtained from help line (9415024365) on giving mobile No. and SIM serial number. The PUK No. should be entered carefully as wrong feeding of PUK No repeatedly will damage the SIM, permanently."

FOR bsnl numbers only.