Will do. It's quite interesting because they are some Mutyals in Pakistani Punjab also (have just been told) and they also allege the same. I'll let you know as soon as I find out. Interesting about the 'Yal' note with Brahmins. 
Another point is that there is also another tribe called the 'Rutyal'. This actually tribe was displaced in Punjab approx 1800's during the Sikh conquests and their riyasat renamed Rutala/Ratala. (in recognition of it's old rulers) could they also be linked? The Rutyals were known as Rajas too around those parts. Have you heard of Rutyals? Im sure an Indian congressman is a Rutyal.