JEE Main Scores

Yes, with this rank you will definitely get CSE. Your JEE Mains marks and class 12th marks are extremely well. UPES is good platform for you to show your talent.
But fee may be an issue. If not, go for it.

Hello Aman,
138 marks in JEE Mains exam can give you admission in good govt. colleges but for NIT you have to wait for last rounds of counselling. Little chances are there also(in NIT) because you can get some relaxation based on your category.

As per your marks you can get a seat easily under stream 1. But to get ECE or EEE your rank should be good. The rank depends on the no. of students who have applied and the first mark in the stream 1.
Your percentile will be 1040(0.75)+35(0.25)=73.7 . On this basis you will be placed on a rank. The last date is June 10 and they will be releasing the rank list so you can check your possibility.
But you can get a seat and there medium chances to get ECE and EEE.

You should participate in JAC, Chandigarh counselling and UKTU Uttara hand counselling. JIIT Noida, BIT Patna campus, Jaipur campus and Deoghar campus may be another good options.

You have scored good marks.Why Shiv Nadar? Join any NIT or IIIT.Can you tell me your rank so that I can suggest you few colleges according to your marks.Thapar University, Patiala and LNMIIT will be best for you.These two colleges are far better than Shiv Nadar University.

You can check your eligibility for the colleges here:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

This score will not get you into any government college. So, you can either sit again and perform better in JEE or you can try for colleges that intake students on the basis of 12th percentage. Or you can always get into some private institute in case you only want the degree.

First try if you can get into your home state NIT or some low rank NIT. If not, then go for some regional engineering colleges or GFTI'S. In case you don't get a seat there then you can try for some good colleges under state universities.
Good luck.

Hello Abhishek,
Yes, there are really good chances for you to get a seat at Sastra University. You can also get a top course as you have good scores. Your overall percentage (98%) and JEE main scores (89) will be converted into a percentile and the ranks will be put your percentile will be: 98(0.75)+89(0.25)=95.75
On June 10, in the evening, they will release the rank list and so you may check your possibility of getting a top course.

Hello Meenakshi,
Yes, you can apply for colleges in Maharashtra via your JEE Mains marks. However, considering your marks you are not going to get any good colleges, so if you are inclined to take admission in Maharashtra, only then look forward via management quota.
All the best.