Friend, i have come across the same situation, but i never left my present first i thought to get a job and then leave the one i have, sometimes its kinda frustrating, have patience, Hyderabad is also a good city to enjoy ur life, have fun-filled, get some good friends, how u think so if u get a job in mumbai and then u told to move to some place thats not of ur choice.think seriously and make ur move intelligently.Why u so desperate to switch mumbai, so u have any gul friends there???
