BCA

Follow the reviews below for details:
https://www.shiksha.com/university/university-of-Rajasthan-Jaipur-23071/reviews

Eligibility Criteria:
Candidate must have passed 10+2 in the relevant stream from the recognized board. The student must have taken mathematics as one of the subjects in class 10th.

Hi,
The eligibility criteria is-
Candidates must have passed Gujarat H.S.C./CBSE/ICSE Examination (10+2) or equivalent examination from the General or Science stream with English as one of the subjects. A candidate who has passed an equivalent examination from any other examining body will have to produce eligibility certificate from The Maharaja Sayajirao University of Baroda (which can be obtained from the University Office, Opp. Drugs Laboratory, and Vadodara).
You can fill the form here-
http://www.msubaroda.ac.in/faculty.php?fac_id=3&dep_id=&action=programs

Please mention the university/college name for better assistance.

No, without giving an entrance exam, you cannot join BCA. The fee for the same ranges between 15K and 22K.

Dear Ramsha,
Greetings from AIMS. We appreciate your interest in AIMS. The fee structure of BCA course is 2,44,140 for 3 years and 6 semesters excluding hostel charges, uniform and stationery.For any query, you can mail us on admission@theaims.ac.in With best wishes.

Friend,
You can learn basics of computer online and from books also. In the courses of some colleges, basics of computers is taught in the first year so don't take tension. You can go for BCA.

Please check for your eligibility to apply for a course in BCA from teh criteria mentioned below:
BCA Course: Eligibility
Candidates who wish to pursue BCA course must fulfill the below mentioned eligibility criteria. Pass in 10+2 examination in any stream from a recognised board of education. English as a subject of study. A minimum aggregate score of 45% at 10+2 level. Some colleges prefer students from Science stream or those who have studied Mathematics and Computer Science at 10+2 level.
Regards.

Yes, you can buy you need to clear the entrance exam for the course and you need to study a little about computers and a good maths for the entrance as we as for the course.