BCA

Since you have completed 12th, presuming you have good marks, you will be eligible for a regular BCA. But being a 3 year recognised polytechnic diploma holder, you may opt for lateral entry admissions to a B Tech programme. You will have to clear state level lateral entry eligibility tests. Lateral entry admission is also offered to diploma holders for their BCA programmes in many universities and institutes such as IIIT.

Kindly go through the link for BSc.
https://engineering.shiksha.com/bsc-colleges-in-india-categorypage-2-64-1-0-0-1-1-2-0-none-1-0
Kindly go through the link for BCA
https://it.shiksha.com
Hope this will resolve your query.

If there is no finical requirement or liability , do job.other wise go for MBA.
Also you can do job for 3 years than go for MBA it would add more value to your CV

Top colleges for BCA in Hyderabad are like Symbiosis , Mahatma Gandhi University , and few more. For detail list of such fine colleges can be explored on below link:
https://it.shiksha.com/bca-colleges-in-hyderabad-categorypage-10-100-46-0-0-702-413-2-0-none-1-0
Hope it helps in finding and selecting good college.
All the best.