Taking donation money depends on how many seats are available. The donation fee will be high for the streams that have a lot of demand.
However, if there are seats that are vacant, you can try spot counseling and you will not be charged at all for this except for the fee required for admission.
The money that you might be asked to pay can vary depending on the financial situation of the candidates. Getting in touch with the management facility will help you in getting a clear idea. Keep in mind, however, that people who opted for the management quota had to pay huge amounts of money.
Almost 10% of the seats were kept aside for management quota candidates and they are given on the basis of ‘first come first’. Some people got admitted without paying anything at all except for the admission fee and some had to pay huge amounts of money to get in.
Another thing about getting admission through quota is you may lag behind your peers. Even if you do get admission, a lot depends on you as well.