I might be wrong on this but i feel due to shortage of empty LCN Slots in certain genres, Airtel Digital TV is prioritising which channels to retain and which should be temporarily dropped for adding new channels.
Quite possible that BFlix might be dropped shortly and Dhamaka Movies B4U will be added at LCN 237 and Pravah Picture HD will make its way on Airtel Digital TV replacing Q Marathi on LCN 532.
All the channels being dropped will be readded as soon as LCN Realignment process is completed and bandwidth optimisation task on existing transponders gets done which may be followed by activation of some new transponders