Why extra 24000 fees? Is this valid? hostel fee 172000 for 3 sharing, so high?

So i just went through the admission process today at CMRIT for my brother, Paid KCET fees of 120k Online, but post that they took 24000 from everyone at the admission registration. When i asked if its refundable they said it would depend on the KEA circular. When i asked for a receipt of it. they said they will email me the same. i haven't got any email as of yet. has anyone else got the email, do you know if this is legal fees or something to just grab money?

Second concerning thing is they quoting 172000 for 3 sharing hostel. and 4 sharing is not available. if the 4 sharing is not available then why print on the brochure? what kinda game are they running. Does anyone know who can share the details related to hostel if you have already taken or staying from the 2nd or 3rd year folks? if people can suggest PGs near by which are good also work for me. the fees are going out of hand here for us. this would amount to close to 15L for 4 years otherwise which is too difficult to pay for weaker financial sections like my brother is.