See as you know IIT Madras offers online courses on Data Science and Big data analytics. Also if you want to go for PGDM courses in the topic there are many websites like Upgrad etc where you can pursue such courses.

But there are no such info available online for Indian University offering PG courses in Data science or Big Data Analytics.

To know more about the course you may visit the link below:

https://www.careers360.com/courses/big-data-analytics-course

I hope my answer helps. All the very best for your future endeavors!