PATNA, March 17 -- A retired banker in Bihar's Gaya on Saturday surrendered his three-decade old BSNL pre-paid mobile connection -- he last ported to Kerala -- following a snag in the SIM that warranted him to travel 2,611 kms from Gaya to Kerala to get its replacement, given the state-run telco's technical limitation to swap an inter-circle SIM, said officials on Sunday....