Hello,
Yes, it is possible for you to study MHA after graduating from a foreign medical university approved by the council of India. Since MBBS is one of the most popular professional career options in India, it is very common to pursue it form a foreign University due to the extreme benefits and affordable fee structure.
The degree certificate is as valid as that pursued in India and it won't be any problem in getting you a job in India itself or doing a further study in India.
I hope this helps,
All the best
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