Engineering

As per the year 2020, the cutoff of BE in Mechatronics Engineering at PSG College is around 190

Without JEE exams you cannot get into any of the NITs or IITs. However you can give entrance exams of your state and get into any of the good engineering college of your state. Or you can take a year drop and prepare for JEE exams and give it a try next year. Don't lose hope you have many choices left grab those. Good luck.

No, you can't get any seat in any Engineering colleges showing your last year rank.

The cutoff for Computer Engineering at Government Polytechnic College, Solapur (of 2021-2022) is :
For Home District:
(Category->marks).
1)Open-> 93
2)SC-> 82
3)ST->58
4)NT->89
5)OBC-> 91
For Other District:
(Category->marks)
1)Open->92
2)SC->78
3)ST->66
4)NT->88
5)OBC->86

No it is not possible because it is not comparatively strong than M.Sc.

Yes you can get the M.Sc. Degree if you have secured at least 50 percent in B.Sc. Course.

Computer Science is a bit difficult to get at this rank you can try some lower branches in new NIT's and gfti.

97 was the cutoff last year.

If you want to move to core side and you are really interested in core field you can get good job based on your performance
But you are interested in IT field you have more choices in many companies it is totally up to you

It is totally up to you, if you study well and maintain minimum CGPA 7.5 without active backlogs in your 3-2 you can place in good company.