Hello Leena,
The National Institute of Technology always holds a greater reputation as compared to Sardar Patel Institute of technology.
If we talk about the placements than NIT (if it is a good one) always provides good placements for the students from all branch.All branches have good placements at NITs.Even sardar patel holds good placement records for EXTC department.
Both the college are good and well Known all you need to do now is to decide which branch you want to choose either mechanical or extc.wherever you are interested you may join that.
Hope this may help you.
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