What is a waitlist commitment amount? Does IIM Trichy have this?

The simple definition of waitlist movement amount is the money some colleges accept from students to include them on the waitlist. The reason for charging extra fees is to ensure that students are opting to stay on the waitlist not just in case but because they want to seriously join the college. However, later on, if you fail to get a seat, the amount is refunded and in case you get a seat, this amount is adjusted against the total fees. Paying this amount basically means that one is serious about his admission. IIM Trichy is one of the IIMs that has this facility.