What are my options for Master's in cloud computing?

Hi.

While pure “M.Sc in Cloud Computing” is rare in India, many MTech/MSc programs offer cloud specialization:

Top Indian Universities Offering Cloud Computing Specializations

UPES, Dehradun – M.Tech in Cloud Computing & Virtualization

VIT Vellore – M.Tech (CSE) with Cloud Computing electives

SRM Univers

If you want to pursue a Master's in cloud computing then you can go for full-time courses like MTech, MCA or an MSc in Computer Science. 
Before enrolling for these courses, make sure you fulfill the prior requirements and eligibility for these PG courses.