Was checking seat for a sub 2 hour domestic flight in Air India express. Noticed biz seat available for ₹2,250 per seat. I believe they are genearlly available for ₹4,500. I would usually book front seat before biz started showing up which would cost ₹1,750 to ₹2,000. So, this is good value for extra ₹500. Only downside is using credit card or amazon pay was adding extra convenience charges of ₹400 per seat. That is loot as I already had tickets booked and have never been charged convenience charges for booking seats. Used net banking for which their was no convenience charges.