no. of malls is increasing because the purchasing power of people is increasing alongwith shortage of time. people are moving from traditional shopping to one stop shopping so as to save time. thats why no. of malls are increasing and are also successfull.
A good college gives you a good platform to start with. When you get placement from a good college as a fresher, you are far better than getting self sourced placement.
there is no difference as far as course is concerned but difference lies in the fact that in mba one gets degree while in pgdbm one gets diploma... so after mba on can be termed as post graduate but in pgdbm he will be a diploma holder