That has nothing to do with the Jathedar. His control is over the Takhat, nothing else. If you want to meet a Bhramgyani in this day and age, go and meet Jathedar Kulwant Singh Ji.
Sigher, afaik, original bana was like that - it's actually a single piece of cloth held in place with a kamrkassa. During difficult times, there was no time to stitch sleeves etc or get choley made so I think it's remained a tradtition for the pujari to wear it when doing sewa in the sachkhand room.
what evidence do you have to make such a big statement that he is a"brahmgiani"?
just because you are born into a doctors family, it doesnt make u a doctor. You have to do kamaee to earn your status, just because Jathedar sahib does seva in anguita sahib, it doesnt automatically make him a brahmgiani. He has to do kamaee to reach that status just like any one of us!
please dont use the word Brahmgiani so lightly, there are a lot of mahapursh who did a lot of kamaee and finally reached that stage. Jathedar Sahib was studying (BA) after which committee members gave the role of Jathedar, he has to do his kamaee just like anyone else in this world.
of course we all respect him because vaheguru has given him such a high seva, which indicates that he has done some very good karam in previous life. No matter what he is Takhat sachkhands Jathedar, and we hold the utmost respect for him, and his seva is very very great.