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Hi Avijet,
The best PSU for an instrumentation engineer in overall aspect is IOCL.
In terms of salary first is ONGC then NTPC then IOCL, GAIL , BPCL lie at same range and then comes HPCL
Dear Avijeet,
as of my knowledge Indian Oil Coorporation Ltd is best for an instrumentation engineer. It's a dream company for all of them.
in terms of salary ONGC>NTPC>IOCL=BPCL=GAIL>HPCL
but remember for ONGC be mentally prepared for rough and tough work and Offshore 15 days ON/OFF which is considered the hardest part.
Hope you got your answer.
Good luck :)
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