B.Tech

Please mention the university/college name for better assistance as fees may vary a lot for government and private colleges.

Check out the reviews below for details :
https://www.shiksha.com/college/academy-of-technology-west-Bengal-other-41537/reviews?course=208017&sort_by=year of graduation&type=question
(Copy paste the entire link in the browser).

Congratulations and all the best. The whole process will be done by you so it's your wish to take your parents with you or not. It will take one day like from morning to night. As GD-PI is divided in different slots. The last merit list of GD-pI comes at max 6:30. So many of the parents pays the fees at the same day. It is allowed till 11:00 PM to pay the fees else you can pay it the next day. It is not mandatory to be in formals.

Follow the predictor below to know which are the best colleges you can get through WBJEE:
https://www.shiksha.com/wbjee-college-predictor
Top colleges in Kolkata :
https://www.shiksha.com/b-tech/ranking/top-engineering-colleges-in-Kolkata/44-2-0-130-0

No, it is not necessary. Candidate must have obtained a Bachelors degree under 10+2+3 pattern of education in Physical, Biological, Agricultural, Veterinary and Fishery Sciences or Pharmacy or Engineering/Technology or 4-years B.Sc. (Physician Assistant Course) or M.B.B.S. or B.D.S. degree from any recognized university.
Details :
https://www.shiksha.com/science/course/m-sc-in-biotechnology-jawaharlal-nehru-university-mehrauli-delhi-9950

Admission is through counseling based on the rank obtained in Telangana State Engineering Agricultural and Medical Common Entrance Test (TS EAMCET). For further details regarding eligibility to pursue this course, please refer to the link provided below:
https://www.shiksha.com/b-tech/course/b-tech-in-mechanical-engineering-malla-reddy-engineering-college-secunderabad-219845

Go through the college predictor below for details:
https://www.shiksha.com/mhcet-college-predictor

Hi Ishita,
As per the reviews, placements are good in GLA University. To get detailed information on the placements, you can get in touch with the students/alumni of the institute or you can also send the query to the college for the same. Please refer the link below:
https://www.shiksha.com/university/gla-university-mathura-36995/reviews
Regards.

College change or university change after the first year is completely dependent on college and university norms, some university allow it and some won't plus you need to have good scores in the first year to apply for the same.
For further details, contact the college authorities.