That's quite a huge amount of questions! I will try to reply shortly:

-1Being Muslims for example they're not related to Hindu mythology as Hijra, but at the same time they adopted guru-chela structure. Many of them have relations with Indian transgender people and some even have Hindu Gurus. I have heard also someone claiming to be like "sadhus", being above caste, religion and so on...so borders are quite blurred and dynamic.

-2 Matchmaking is a profession some non transgender people also do..means collecting informations of girls and boys and presenting them to families with informations about social position, education, reputation etc...

-3 Yes...generational gap is quite an issue actually. Elders are often quite sober when it's about dressing and make up, but Youngers are more and more trying to express their female side. Gender reassignment surgery is one of this divisive topics and it's getting quite controversial.

-4 I would say that in their society, according to Islamic rules, their attitude is still acceptable till we don't speak about sexual life. So that part is not formally expressed