Hello Chandrika,

Candidates needs to qualify GATE 2019 if they wish to apply for ECIL recruitment process. Previous years score will be invalid if candidates are applying through GATE 2018 score. Also, there is no such minimum gate score for applying for the process. Candidates applying for recruitment process must have secured atleast First Class Engineering Degree with minimum of 65% marks from AICTE approved university/college from India.

You can get complete information from the below mentioned link of article "ECIL Recruitment through GATE 2018"

Link: https://engineering.careers360.com/articles/ecil-recruitment-through-gate

All the best!