West Bengal

Hi Arindam, Calcutta Institute of Engineering And Management (CIEM) is not a government college. It is a private college located in Tollygunge, affiliated to MAKAUT. And as far as ranking is concerned, it does not come in the top 200 engineering colleges in India, so there is no formal rank for it in NIRF Ranking 2019. I can give you the list of top engineering colleges in West Bengal:
https://www.shiksha.com/b-tech/ranking/top-engineering-colleges-in-west-Bengal/44-2-127-0-0.

No, it will be quite hard for you to get admission there if you have scored 75. I am really very sorry to inform you about it. If you have any query do let me know in the comments down below.
All the best.

Visit the link below and get information related to cut-offs, placements, courses, fees, admissions, rankings, eligibility and reviews for Mass Communication & Media Courses and Colleges in Kolkata:
https://www.shiksha.com/mass-communication-media/colleges/colleges-Kolkata

Yes, you can give SSC CGL and WBCS exam after completing your BCA from any institute. The eligibility for these exam is graduation only. Good luck.

EIILM is the best institute in Kolkata. They have the largest number of full-time faculty and a great placement record. They offer a minimum of INR. 3 lakhs of placement package.

Yes, you can apply for this course after class 12th.

IIHM-Kolkata is affiliated to Director of Technical Education & Training , West Bengal government. It is also recognized by AICTE.

You must go to the site of the college and check the eligibility for pass 10th pass out for getting science stream you will get to Know everything .

Please use JEE Mains college predictor it will give you the list of college as per your rank/ marks/ percentile
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor&ved=2ahUKEwic9v7Y_aziAhUXEnIKHbvZBmAQFjAAegQIBRAB&usg=AOvVaw1N9BzFtyUCP4JU-2UQHQ0H
Good luck.

Hi,
Visit this link to check colleges based upon your rank:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
Good Luck. Hope it helps.