MCA

You must have at least 50% marks in the qualifying graduation courses to get entry in MCA lateral entry course.

Mandatory Courses: BCAB.Sc. (Computer Science)
Candidate who have passed B.Sc. in Information Technology/ BBA in Computer Aided Management from a recognised college/ university are also eligible to apply for the course.

Yes, MCA (Lateral Entry) is provided at Manav Rachna International University. 

The total tuition fee for Master of Computer Applications (MCA Lateral Entry) course is INR 3,49,000 for the 2 years. The fees might include components other than tuition fees. 

Hostel Fees: INR 2.53 Lakh
Hostel fee is calculated on the basis of 1st year. Actual amount may vary.
The fees might include components other than hostel fees.
Meal Plan is included in mentioned fee.

Yes, Masters in Computers Applications is offered at the faculty. It is a 3 year PG course and the subjects prepare the students with in-depth knowledge of programming with a sound theoretical background and practical exposure in various areas of computer science, such as computational theory, programming, algorithm design and optimization, network, and database administration.

No, MCA is not offered here at Heritage College, Kolkata. Heritage College, Kolkata offers a range of undergraduate courses in various disciplines. However, the courses offered by Heritage College include:
1- Bachelor of Arts (B.A.) in English
2- Bachelor of Science (B.Sc.) in Physics
3- Bachelor of Science (B.Sc.) in Chemistry
4- Bachelor of Science (B.Sc.) in Mathematics
5- Bachelor of Science (B.Sc.) in Economics
6- Bachelor of Commerce (B.Com) in Accountancy and Finance

Yes.MCA offered at Khwaja Moinuddin Chishti Urdu, Arabi~Farsi University.This course is offered at this university.And the seats are limited.

For full time MCA program, RV College of Engineering offers a total of 120 seats. The students get admission to this program through entrance test Karnataka PGCET. Also, there is management quota seats available. 

It will not be difficult for you. Only things will be new for you. Just the difference between you and a BCA pursued student would be they are form tech background and you were not. But if you work for, it's not going to be difficult for you.