BCA

Techno India will be a better option.

Yes, BCA is a very good course only if you have interest in computer. Otherwise I won't recommend it. Else you should opt for BBA since you are form commerce.

Dear,
There are so many reputed colleges in Kolkata for studying BCA like:
1.Apex colleges of Management Studies,
2. Institute of Management Studies
3 B.P. Poddar institute of Management and Technology
4. George College
5. OEM
6. Techno India University, etc.

Dear,
As per my opinion, B.Tech followed by MBA/PGDM from top B-School is the best option.
Best wishes.

Apply through online application form available on www.mitacsc.ac.in

Since you have completed BCA, MCA will be best for you.

We have BBA (Computer Application) [Formerly known as BCA] course at MIT ACSC. 12th arts students are eligible for BBA(CA) admission as per the eligibility criteria of Savitribai Phule Pune University.

Yes, you can go for it. It has wider options.

BCA is a basic graduation qualification for starting a career in IT industry. With BCA, you can only get lower end entry level jobs in IT industry. In order to get a meaningful job, you will have to do MCA. Thus you will take 6-years education period before you get a good job. Whereas, B.Tech in aeronautical engineering is engineering degree with good opportunities. It is superior qualification over BCA. If you have both the options, I will recommend you to opt for B.Tech aeronautical engineering over BCA.