No, with a Rank of 76k in JEE Main, being from General Category, you probably wont have strong chances among NITs even in CSAB Round. You should definitely check CSAB Spot Cutoffs of your Home State NIT, Certain North East NITs as well as GFTI. BIT Mesra is a very good GFTI and you may have moderate scope in securing a seat in the CSAB Rounds in certain Branches like Chemical, Plastic/Polymer, Biotechnology, Production, Civil and some others, however do check the Previous Spot Round Cutoffs before Deciding.

You should parallely target State Engineering Colleges, under State Engineering Counselling if through JEE Main scorecard as well as many good private Universities and Engineering Colleges accepting JEE Main Scorecard for Admission and Counselling.