If you want to clear CDS examination, the thing that matters the most is the preparation for the examination. For this case, the college don't matters a lot.

Some of the top colleges in India for BA are provided below:

St Xavier's College, Ahmedabad

Hindu College, Delhi

Presidency College, Chennai

Mount Carmel College, Bangalore

Symbiosis College of Arts and Commerce, Pune

Loyola College, Chennai

Fergusson College, Pune

For more colleges consider the link below:

https://university.careers360.com/colleges/list-of-ba-degree-colleges-in-india

For the preparation strategy of CDS consider the link below:

https://competition.careers360.com/articles/how-to-prepare-for-cds

I hope this helps. Wish you a great day!