From placement point of view, which NIT is better among NIT Trichy, NIT warangal and NIT Karnataka Surathkal in M.Tech Course of Communication specialization?

This answer might be a little irrelevant, but I feel it will answer your queries. As some of my friends studied Advanced Communication Systems (ACS) at NIT Warangal, I can say that seeing your interest in Communication you must be from an ECE background. There are two more streams in NIT Warangal for ECE graduates, VLSI and Electronics Instrumentation (EI). VLSI should be your first choice. If you don’t get VLSI, opt for EI. 

Let me share the reasons as to why I think so.

• EI is not core for ECE graduates. 
• But if you want to get jobs in core ECE, VLSI or EI are better choices than ACS. 
• However, ACS placements are improving. 
• All the packages are above INR 15 LPA.
• Students are getting internships in Intel, Dell, Analog Devices, Synaptics, Xilinx, Synopsys, etc. 
• Students get placed in C-Dot, Intel, Sandisk, Qualcomm, Xilinx, nVidia, Synopsys, etc.
• The subject ACS has no scope in the market. 
• So, companies that come will want you to know VHDL and Verilog.
• These subjects are taught in both VLSI and EI, not in ACS. 

So, even after getting poor grades, you have to study other subjects for placements, if you are in ACS. To conclude, if you want to join NIT Warangal, go with VLSI or EI.