The Hindu — increased college fees in mid of course.

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My colleged pt deendayal upadhyay national Institute for persons with physical disabilities (divyangjan) is consistently increasing fees in past two years.
At the time of admission they told us that fees will decrease in subsequent years .
2 nd yr fees was 19000 it was increased to 25000 (approx )

And also take fres for internship. At the time of admission, in the college prospectus, there was only 4 year fees description & 6 month internship .
But after getting admission we came to know internship fees .
College takes tuition fees for no classes in internship.
25000 for submitting research in the internship ?? Is this legally correct ??
And
is this legal to increase fees in mid of course ?
My brother's college (DTU )also
increased fees but for new students not for those who already taken admission.
I can't understand this difference.