I have got 76% in 12th and my UPSEE 2018 rank is 21308. Can I get admission for CSE or ECE in ABES?

On the basis of your 12th marks i.e. if you opt for Direct Admission, you will not be able to clear the cutoff. But on the basis of UPSEE counselling i.e. UPSEE rank, you are somewhat likely to get CSE and more likely to get ECE branch. Do upvote if you like the answer.

Yes, you can get the college but try in all the rounds of counseling who knows you'll get better colleges than ABES.

There are not so many chances of getting CSE branch in this college but you may get ECE and your rank is also too high so there are only a few chances. You better go for few more counselling rounds, maybe chances are there. Try hard and hope for the best.

You can get this college, but in the spot counselling round. According to me, there are very less chances of getting this college.

Yes, you can get ECE for sure and can also try for CS.