Hi Sushma, it is kind of tough to predict ranks just with raw score, because there are lots of factors being involved and performance of many students. However it can surely be in the range of 500-1200 maximum. And depending on the scores, the PSU chances would be,

1) NPCIL

2) BEML - close chances

3) HAL

4) CEL

5) MDL

For clear and detailed information on cutoffa for various PSU in EE refer to this link below,

https://engineering.careers360.com/articles/what-are-gate-scores-for-psu-recruitment

For IIT selections,

1) IIT Kharagpur - few courses can be obtained

2) IIT Guwahati

3) IIT Kanpur - few courses can be obtained

Also there are high chances for getting through all top NITs.

You can refer to this link below to get detailed cutoffs for each IIT various courses and NITs cutoffs

https://engineering.careers360.com/articles/what-good-gate-score