What is mean by airtel hlr?

2 types of HLR in AirTel

HLR-1

HLR-2

The HLR 1 Sim is used for migration that mean ur lost sim will activated in to another duplicate (dummy) sim

The HLR 2 sim is used for RETAILER (EC SIM) DEALER sim and FOR PORTABILITY SIM.ONE NETWORK 2 ANOTHER NETWORK .....BY STATE 2 STATE THAT MEAN COVERAGE ONE OF STATE FREQUENCY 2 ANOTHER STATE FREQURNCY (SPECIALLY MADE FOR ROAMING)