Hello SL,

You should appl for PSU after yoyr GATE exams. Each company will annouce the GATE score that will be considered. For more details please refer to this link.

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

Hii SL Gayathry..

PSU Recruitment through GATE 2018 – An increasing number of PSUs, current figures stand at 50 plus, today use GATE scores to recruit graduate engineers. Some of the prominent PSUs that use GATE scores for recruitment include BHEL, GAIL, NHPC, BSNL and DMRC. Candidates need to have valid and good GATE scores to be considered for recruitement, as competition is stiff. The trend of PSU recruitment through GATE first started in 2012, when a handful of PSUs used GATE scores for recruitment. The trend took off from there and GATE scores quickly turned into a benchmark that PSUs today use to screen and hire quality highly-educated graduates across various engineering disciplines. The number of vacancies that are filled in these companies through the PSU recruitment through GATE are huge; for instance BSNL hired a record-setting 2,510 GATE candidates this year.

Hope you got it. All the best.