Colleges in Haryana

Hello Shruti,
For VA, which was my the weakest section I alternated in RC and VA, practised 4 RCs one day, solved 40-50 VA questions the next day and so on. For RCs, in particular remember you don't need to solve all question of an RC, because even if questions seem easy options might be tricky so leave them. Solve easy questions in that time. (Do not take any QA question, RC or a DI LR set on your ego. One cannot afford it in an exam like CAT where saving time is everything, learn to leave the questions too).
For vocabulary, I completed word power made easy by Norman Lewis and revised vocabulary sessions of TIME 34 times. (Never SAT and mugged up the words, that's not required. CAT judges you on your analytical skills mainly and not vocabulary). You can take tips from my strategy.
Hope this helps.

The admission criteria differs for every university. According to popular universities, a candidate must be from Science/Commerce stream and must have studied Maths and Computer Science as mandatory subjects in +2 and should have scored at least 70% in +2.
But, some universities also provide admission to arts students too with Maths and CS being non-mandatory subjects.
So, basically everyone can take admission into BCA but the university will matter.
If you want to learn programming languages which you will be studying in your BCA course then you can check out this app which is specially designed and developed for BCA students. It has programs and assignments of languages like C, C+ and Java with their outputs. You'll be studying these languages in your 3 years of BCA.