Its all administration problem. Attack of insecure neta raj thakrey for marathi, itself proves that they are not capable to compete with the UP and bihari people. U or no one can ever say who has to come to mumbai n who has to go back from mumbai. When politicans have used UP and bihar just for politics n left no job opportunities for the talented people like u said. Those talented people had to migrate to mumbai for jobs. They earn, save n live life. If u r troubled n insecure with their earning, go n improve ur talent.