There used to be some cracking deals with Kingfisher.
Best example was my dad. He purchased a cheap Y ticket for lhr-BOM run for about £350....upgraded the return portion for another 300.
This was before kingfisher only allowed upgrades on expensive Y fares which made option town a not so good deal.
Glad to hear that Air India have got a deal with Option town but in all reality, this is something Air India should be able to handle in house.