It's a great headline - with the similar price and dissimilar quantity, but behind this there is a prosaic and boring explanation
RAF: An £8OOm price has been quoted for the Hawk 128 ‘deal’, covering full development of the Hawk 128, acquisition of 44 fully equipped aircraft (“We currently foresee a requirement for 44 aircraft, derived from study work about our future pilot training processes.... Our current expectation is that we will need to buy all 44.”), and the provision of initial spares and support equipment. The price will reduce if only 24 are built.
India: The £800 m price includes the acquisition of far fewer than 66 aircraft, since at the tail end of the programme these will be entirely indigenously built. It therefore includes a handful of fully assembled aircraft from Brough/Warton, some more delivered knocked down, and then aircraft delivered as major assemblies, and then more as minor sub assemblies before full local manufacture. At several of these stages, there will be a significant reduction in 'value added' by Brough/Warton, so the unit price for these 'kits' will be lower. I'm not sure that India's price includes the Adour engines, either, since India already builds Adours for its Jags, and may build more for the Hawk (I know, different Adour). Also I believe that the Indian jets will include some local avionics etc. from the start, - another thing to knock off the price tag.
Moreover, while the RAF's Hawks will be full up Hawk LIFTs, like the Aussie and South African super jets, India's Hawk 115Ys will be to a much more modest standard. So yes - alloy wheels and body kits will be included!