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
Candidates can check B.Tech Cut off for Top IITs & NITs here.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile