I think the 'your mother is...' one is
'dare-ma sale muscleman gutro' or something akin to that.
(
Captain Wow currently being a cunt in Infamous,
Wed 3 Jun 2009, 9:27,
archived)
I also got taught
"I want to open an income tax office in your mother's cunt" but can only remember a little bit of it
bizarre swearers these Gujarati
(
Griffin Saver Something, something, 2006, something.,
Wed 3 Jun 2009, 9:30,
archived)