Hyderabad most likely. in one twitter conversations at fni page someone was telling about some press release regarding trials of age group teams, for a I league team in Hyderabad. Don't know if it is true. someone like @gaffertape only can confirm.
About Hindustan FC sponsors ... the amount of money will be very less I am sure. But they have been able to corner that many sponsors is interesting news. With the club's performance, the amount of money will increase and more sponsors would be interested.
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http://m.timesofindia.com/city/goa/gfa-takes-its-case-to-appeals-committee/articleshow/48474471.cms