Just went shopping at our local ASDA store (Merthyr Tydfil) and found 1kg bags of Tilda Pure Basmati Rice for £1.20. To put that in context, their 750g bag costs £2.97! We were so impressed we got 3 bags, and went through the checkout no problem.
This offer is instore only - seems that it's ASDA selling off the end of line stock due to Tilda launching new-sized packs. (Therefore there may be other-sized packs on offer too: a 10kg pack has been spotted for £6!) Definitely worth a look if you're in store, particularly with the current price rises on rice!
PS. It's my first deal, so be kind! :)