I think it’s highly illogical to charge such high fees for an MTech self-sponsored at IIT Hyderabad. Usually, they consider industry-sponsored and self-sponsored as equal. However, the fees for sponsored candidates are always higher than for MHRD candidates. So I would recommend you to clear GATE or get into an industry in order to do your Mtech as 10 Lakhs for an MTech is not worth it and might put you in a financial hole. In many cases, self-sponsored students are considered inferior by the professors.
Ultimately, go for it only if you are financially stable and can afford it. Else, go for other options like GATE, industrial jobs, or many other NITs and IITs.