Hello Arzoo

For General

If GATE rank is less than 100, most probably you will get a interview call from these companies.

If GATE rank is less than 30, 99% you are selected to these companies.

If GATE rank is less than 10, 100% you are selected.

For OBS or SC/ST

If GATE rank is around 50, 99% they are selected.

There are situations where even with GATE 1000 rank also got selected.

For more information refer the below link

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