DISH TV charging Rs 40 to change the subscription plan. I do not think one should be charged for changing its channel package.
Below is correspondence from their customer care.
-----------------------------------------------------------------------
Subject: Re: Kindly activate only DTH Family package on VC

Dear Sir/Ma'am,

Thank you for writing to dishtv.

We would like to inform you that we are unable to process your request as in order to downgrade the package we need your contact number for the confirmation.

Kindly revert with your contact number so that needful can be done.

Please note that In order to downgrade your package Rs.40/- will be change for Downgrade change and you will get less channels in Dish Family package which cost of Rs.175/- per month (inclusive tax) kindly revert with confirmation for the same.

You can also call on our customer care helpline number for the same.

Incase of any concerns please write to us or call us, we would be glad to be of assistance.

We value your association and assure you of our commitment to serve you with a smile.

Regards,
Mukesh Kumar Pandey
Customer service
DISHTV

Only MTNL/BSNL lines : 1860-180-3474;Only non MTNL/BSNL lines : 60013474 (Prefix 011 for North; 022 for West; 033 for East; 044 for South); All lines: 0120-2550000.
To Register your Mobile Number SMS - DISHTV RMN <VC No> to 57575