B.Tech

Yes, hopefully, you can get in most of the colleges.
But I would request you to attend the counselling session as it gives you a greater chance of getting a seat.

You can get a seat in lower colleges with 55 marks in CEE. I would suggest you participate in the counselling. And see what happens. Try for the last round of counselling also.
Best of luck.

No, actually there are around 11 branches for B.Tech, but some of the institutes do not have Industrial Engineering and Petroleum Engineering which is available only in few of the institutes.

Hello Kavya,
I am attaching a link that will give you all the required information about previous years question papers as well as this year's sample paper. https://www-shiksha-com.cdn.ampproject.org/v/s/www.shiksha.com/university/shiv-nadar-university/amp/snusat-exam-question-papers?amp_js_v=a2&_gsa=1&usqp=mq331AQCCAE=#referrer=https://www.google.com&_tf=From %1$s&share=https://www.shiksha.com/university/shiv-nadar-university/snusat-exam-question-papers
Best wishes to you.

Hi,
As you have scored 55 in cee. So, you are eligible to take admission for B.Tech. You should apply for the counselling and go till the last round of the counselling.
You will be given a seat.
Best of luck.

Hello Soumya,
You can get admission in IEM. You will probably not get CSE but can get other branches like IT, ECE, EEE, EE or ME. In IEM only 10% seats are allotted for admission through JEE Main. So, it depends on luck.

Hi,
Congratulation for the CUSAT rank. The field you opted for is very unique. Photonics has a very good job prospects now than in the past. In conventional optics like imaging and non-imaging optics design, Many companies in India have Job prospects for example, many automotive companies (I. e Valeo, Hella, Varroc, Indo-Japan Lighting, TVS, Tata, Mahindra & Mahindra) look for non-imaging optical designers for making lighting systems and they also do look for imaging system engineers.

The JoSAA counselling process for admission in NIT will most probably start from 1st week of June.

Here, I am attaching a list of colleges in Tamil Nadu who accept JEE score. https://www.shiksha.com/b-tech/ranking/top-engineering-colleges-in-tamil-nadu-accepting-jee-main/44-2-123-0-6244.