Hello dear , Top Institutes  in India to do PGDCA after B.com (//B.com) :

1. Jamia Millia Islamia , New Delhi

2. Madras Christian College ,Chennai

3. Prestige Institute of Management and Research , Indore

4. Mehr Chand Mahajan Dayanand Anglo Vedic College for Women, Chandigarh

5. LPU , Jalandhar

6. NIMS University , Jaipur

Hope this helps !!