Hello aspirant,
Hope you are doing great. So, as per your question, in India to do massage therapy diploma programme in Pune, the lower age limit is 17 years  and whereas the upper age limit is 25 years. That means if you are more than 25 years, then you won't be able to do the programme. Also, the upper age limit has certain age relaxation to those candidates are ex service or in service, and also to those students who had passed the ayurveda therapists course of one year duration.
Hope it helps you,
Good luck, Thank you.