I welcome this move. Daily data indirectly forces people to use the data daily, else they may get guilty of wasting money. I hope all other telcos follow this move and brings the congestion in network under control. Another good thing in these plans are, the validity are in 30 days and its multiples and not stupid 28 days like earlier.
But as someone already pointed out, Rs249 plan is not that attractive, comparing Jio Rs199 postpaid plan. Even Airtel Corporate postpaid plan gives 30GB data for Rs249 (GST is received back as ITC - Input Tax Credit) and the unused data accumulated till 200GB.