Bangalore

It is one the best PG Diploma in Data Analytics in India.

Except 2 students everyone got placed from operations.

Hi Kavi. You can go through the college rankings and the Alumni of the college in Madurai. I will advice you to select that college who's average package is total of your fees. Means best ROI. You should always see the ROI before you select a college. One of that college is Sri Balaji Society Pune. Who is been known for its corporate training also the ROI is best among Pvt college.

Which course are you planning to get enroll in Karnataka Collage of Nursing?

To my knowledge, MSRIT is one of the best college in Karnataka. The placements are excellent and if you are an average or above average student, definitely you'll be having 2-3 offer letters in your hand while you passout.
Also, Bangalore is a software hub. IT jobs are easily available here. Think wise and choose
All the best !!

For CET it is below 1500 and for COMEDK it is below 4000.

Its an average collge. https://www.shiksha.com/bba/course/bachelor-business-management-bbm-kristu-jayanti-college/163501
You can search for other colleges.

Hyderabad and Mumbai branches are very good for finance.If you talk about these three branches i think among these you can select Pune. Pune placements are quite good.