Your ticket is waitlisted 1 in a quota of 4. It is reasonable not to expect swift movement in this status and hence the possibility for it to end in waitlist is high.
There are 10 seats in HO in 2A. (Not of much use to you because if they aren't utilized, they'll be given to waitlisted passengers from MAS, and by the time charting for your origin is done, they'd be exhausted).
Either book from Chennai and get the boarding point changed or try Tatkal for better chances.