MCA

https://www.shiksha.com/college/mount-carmel-college-palace-road-bangalore-24896
Here are the complete details about the college
Kindly follow the link:
If you are working as well you can opt for distance education
https://www.shiksha.com/it-software/colleges/distance-correspondence-mca-colleges-india
Here is the list of the college.

The eligibility criteria of MCA at CBIT is given below. Educational qualifications of MCA A candidate seeking admission to the three year full time MCA programme must satisfy the following criteria:
1. A candidate must have passed in any Bachelor's degree with Mathematics at Intermediate (10+2) level or should have studied Mathematics as one of the subjects at graduation level.
2. Must have qualified in Integrated Common Entrance Test ICET conducted by TS State Council of Higher Education, government. Of TS. So from above if you have studied Math at graduation level, than can be eligible for MCA course.

The latest fee structure of MCA course is not available at DU's website. However the fee structure for year 2017 is available for an assessment. As per the fee structure of DU's for year 2017 for MCA course, The three years fee is about Rs 47294.

Yes, it is good to do MCA after B.Sc, because only the B.Sc degree will not give you a better job. You can get job as a software engineer or software test engineer after completion of MCA. But, if you intend to opt B.Tech-IT, then you can get direct admission in 2nd year of B.Tech.

The CMAT score above 160 and ranks below 50 can be good enough for MSU Baroda for MCA lateral course.

Hi
https://www.shiksha.com/mba/tancet-exam-cutoff
You can see the above link to know about the cut offs.

Hi
View this link to know the top colleges accepting TANCET score.
https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india-accepting-tancet/2-2-0-0-9276
https://www.shiksha.com/mba/tancet-exam-cutoff.

The following colleges can meet yours requirements.
1. Thiagarajar College of Engineering, Madurai
2. Anna University, Chennai
3. Hindustan Institute of Technology & Science, [HITS] Chennai
4. Loyala College, Chennai
5. St Joseph College-Tiruchirappalli, Tiruchirappalli
6. KLN College of Engineering (KLNCE), Madurai
7. Hindustan Institute of Technology & Science, [HITS] Chennai.