What should be the preference of an MTech in VLSI Design in NIT Trichy, NIT Surathkal and NIT Warangal?

All the 3 NITs namely NIT Trichy, Surathkal, and Warangal are considered to be among the top NITs and are highly regarded engineering colleges. Their rankings are also quite similar but in my opinion, the preference order should be 

NIT Warangal>NIT Surathkal>NIT Trichy

The reason Trichy should be your last option is because it does not permit students to go for Internship which in turn results in no PPOs. Many students get PPOs and thus are free from the stress of sitting for placements. Also, internships give you a better experience of the real world. Here is a brief overview of these 3 colleges

The placement scenario of these NITs is somewhat the same so that should not be your primary concern. Focus on personal preferences like proximity to home, hostel fcilties, etc