Golkonda resorts, Ramoji Film city and Palm Exotica resorts is another place to look out for after Alankrita and Leonia.
Few other options are Lahari resorts, Hidden Castle, Songs of Earth are recommended too.
Pragati resorts, dream valley resorts, Papyrus port resorts have lost their charm offlate.
If you are looking out for day outings,
You can consider Wonderla, Escape water park at Fort Grand and Mount Opera.
If at all you want to consider camping and adventure games, Hills and Valleys resorts, Deccan Trails and Grasswalk would be a few options.
I hope this helps you