As far as I know Ayurvedic Treatment/Medicines are not allowed in Qatar. They are only allowed to do some external treatments like massage (dhara, pizhichil, uzhuchil, ..etc.). There is one branch of Kottackal Aryavydyasala in Muntazha, may be they can help you to get some details. I don't have their contact details. They are located behind Qatar Malayali Samajam.