M.Sc

Here is the link you will give all the updates about which entrance exam is carried out by Anna University and other admission procedures:
https://www.shiksha.com/university/anna-university-Chennai-3084

The best suggestion for you is that you should buy the previous year papers from the nearby market. It contains both questions and answers. So, it will help you.
Best of luck.

Hello Sandhya,
As per your tags in question KRUCET Model papers are not available in any website. Only you can get by senior students or Model paper books are available in market, As I know you can get model paper of KRUCET in Vijayawada Lenin Centre.

Refer the below link for Punjab University - Common Entrance Test syllabus. You will see the syllabus, important dates and the way you can register for the exams. The question paper which is solved are in PDF format and easy to download. You can also download the papers to understand the pattern and marks scheme to prepare accordingly. All the best. https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/university/panjab-university/pu-cet-pg-exam&ved=2ahUKEwii99KQ6ZDiAhWHb30KHdyMDhkQFjAHegQIBBAB&usg=AOvVaw0NY5ASFBdgdAs_v4IDb2sT

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.

It would be uploaded on official website, so check regularly update on it.

Yes, your rank is excellent and you can take admission.

Yes, but you have given COMEDK entrance exam then you will be eligible for admission.

No, you can't pursue two degree course side by side. Either you can do a Diploma course along with a degree course.

I am attaching a list of best colleges providing M.Sc. Courses in India. https://www.shiksha.com/science/articles/top-10-bsc-msc-colleges-in-india-blogId-13473.