In the Assam, NESA & Jammu and Kashmir telecom circle, BSNL offers 10 Prepaid Plan and in order to increase the validity of these plans, BSNL users need to recharge their number with Plan Voucher only just like in order telecom circles.
As a promotional offer, BSNL is offering Plan Extension Voucher 17 and Plan Extension Voucher 19 for Per Sec customers and Per Min customers respectively. The offer was introduced on 24th May, 2017 for 90 days only and will expire on 21st August, 2017.
All other Plans shall be extended by Plan Vouchers only. For instance, to extend the validity of Pyari Jodi Plan, BSNL customers need to recharge with Pyari Jodi Plan Voucher 75 only.
BSNL Plan Continuation Voucher for Assam, North East and J&K
BSNL Plan Continuation Voucher can recharged via SMS, USSD & Self Care as discussed on this page.