BCA

There is no problem that you have not filled SET exam form. You just have to go to their campus and apply for the course.

Jadavpur University does not provide Lateral entry into their MCA course.
Good luck.

Hi Deepesh,
Yes, you can do BCA even after you are commerce student, because BCA require maths and physics, physics can be difficult but for commerce students maths cannot because any difficult wall. BCA is available for you but you just have to do some hard work in physics.

BCA Course: Admission Process. Admission to BCA course can be secured through an entrance exam or on merit basis. Aspirants need to fulfil the eligibility criteria primarily to be able to sit for entrance exam of any institute. Often, there is an entrance exam conducted by a particular university su

You have less chances to get seat with this rank, but it would be better to try till last round, may be this rank works if more number of seats are left out vacant.

So, clear those backs. IGNOU gives you 2 years to clear your back.

You can refer the following link to get detailed information about the fees structure and other information about uttaranchal university
https://www.shiksha.com/university/uttaranchal-university-Dehradun-4383.

Yes, you can get admission in BCA after class 12th Science.
The minimum eligibility criteria to pursue BCA course is minimum 50% marks in 10+2 with English.

Yes, you can do BCA without Maths.
There are very few colleges that offer BCA without Maths
Some of them are: Christ University, Bangalore, BIT Mesra , LPU, etc.