Which is better for an MBA - Nirma or LBSIM in Delhi? 

The choice here ultimately comes down to your interest. First, decide whether you are interested in pursuing specialized MBA courses like MBA in finance or are you more inclined towards MBA general where you can opt for a specialization in your second year.

I have some friends at LBSIM Delhi. So, can give you some insight into the institute.

Specializations: You will be having a variety of specializations to choose from if you go for LIBSIM. You will get an enormous amount of exposure in terms of corporate, guest lecturers, meet-ups with major industrialists if you opt for this B-School.

Location: When it comes to location, there is an advantage too, located in Delhi which is India's capital and surrounded by two major industrial hubs, Gurgaon and Noida.

Alumni Base: Alumni base of LIBSIM is strong and the institute has maintained an amazing placement record as well.

Other B-Schools in India ranging equal in terms of ranking like Nirma fail to meet up the expectations of students as LIBSIM has set the bar too high.