It seemed that BSNL is raining more concession to port in customers(the customers willing to change to BSNL) than their regular customers. here are few:. For Prepaid 2G 3G customers: a) Port–in–charges will be fully waived off. b) Free SIM. c) Additional talk value for Rs. 100 in addition to the normal free talk value d) 5 GB GPRS free for one month.2. For Postpaid 2G & 3G customers:a) Port–in–charges will be fully waived off.b) Free SIM. c) 3G SIM card will be charged as per selling price.c) 50% rebate to the customers in the FRC of first month.d) 5 GB GPRS free for one month.As one BSNL customer remarked, perhaps I should switched to Airtel or vodophone, and again come to BSNL after six month period..Another customer remarked, it is better BSNL start good services to existing customers.. then their goodwill bring more customers to them..with regards,vaithy