Hello Durgacharan,

As you say, you have completed your B. Tech in 2017-18 from ECE branch. So, irrespective of your current career domain, the one big option that you have for higher studies is GATE, for admissions to IITs, NITs, IIITs and other government and private colleges for pursuing an M.Tech/M.E in various courses offered under ECE department like VLSI, power electronics, etc. 

You can follow the below link for more information about GATE:

Https://engineering.careers360.com/exams/gate

You can follow the below link for GATE rank predictor and E-books on PSU recruitment through GATE.

Http://bit.ly/2UwPrpf