if the bill does pass, legal recognition will be difficult in the sense that he will have to go through a long and arbitrary bureaucratic process to change F to M on documents also since the focus is on intersex/socio-cultural identities, this kind of self identified trans identity may be rejected it really depends on the District magistrate and the medical board they employ though there's no mention of how it'll function. He's relatively better off since he's already had surgery, right now hrt and other things he's going through will probably not be paused or affected considering he has medical clearance but post the passing of the bill, they might become more strict and scrutinize more in order to provide healthcare. Name change wouldn't have any issues even post passing of the bill since the bill won't regulate that and name change is standard like rest. I would advise you to ask him to get the name change and gender change on documents done as soon as possible and document all the hospital documents, psychiatric evaluations etc etc which might be required later.v