Hello Piyush. Welcome to Careers360. Considering the options that you have given us i.e to chosse the best college for pgdm among ITM Mumbai,IILM Delhi or Alliance University. According to me ITM Mumbai will be the best choice for you. It has a better course curriculum and placements records than the other two options.The average salary is around 6.5 lacs per annnum. The only con in this college is its high fees. But ultimately we all know that gaining a MBA or PGDM usually costs high. Hope this answer helps you. Good luck.