I’ve liked the India IC idea ever since reading Don Rae’s essay on opening UK play, although he made a significant oversight - there are actually two Japan fighters that can enter the fray, not one.
In the event that Germany has not targetted the Suez on G1, I still like to consider the India IC play, with strategic prior positioning of Russian arm (I had not considered the Russian fighter play; that intrigues me) [aside: if Egypt is attacked on G1, I like a South Africa UK IC].
R1: Soviet Far East and Russia each move 1 arm to Nov.
UK1: transports 2 inf from Egypt/Iraq to India. Egypt arm moves to Persia. Two fighters move to Russia. IC places in India, fighter places in UK.
Japan: (going full out on the IC); 2 fighters attack transport, lands 2 infantry via its own transport; also attacks with 2 inf + fighter from Burma, fighter from Manchuria, bomber from Japan. (Pearl Harbour will be hit with only two battleships, 1 sub).
Battle:
UK: 4 infantry, 1 fighter
Japan: 4 infantry, 2 fighters, 1 bomber
Japan, we presume, wins. I haven’t analyzed the most likely casualties they would take, but suppose they keep two infantry. This may seem a big assumption, but a) only one casualty seems like very poor UK luck b) forcing a sack of Japan air power as casualties to keep more infantry may make the UK IC play worth it in itself].
Retaliation:
US1: 2 infantry can attack India; this is poor chances, but may be considered against one or two Japan inf defenders. More feasible if China fighter has survived (unlikely, if you have a good Japan player).
R2: 2 arm from Nov. attack India via Sinkiang. Now we have a better chance of success, especially if US was lucky to kill one Japan inf.
UK2: If begins in control of India - lands two fighters, moves in 1 arm, builds 3 arm - looks pretty solid (on top of surviving R2 arm), can now independently hold off Japan for a while.
or
UK2: Japan still has India - attacks with 1 arm and two fighters to delay Japan for another round. Japan will recapture on Japan2 and be building there on Japan3. BUT, it has devoted all possible time and resources to tackling India for two rounds, plus the Pearl Harbour battle has potentially not gone well and its transports will now be harassed.
I strongly try to avoid the Sinkiang IC, since this will seriously cut into funds for US shuck-shuck strategy in the Atlantic.
If the India IC is out of the question (e.g. Egypt falls to G1), India can withdraw all but one inf to begin regrouping while a South Africa IC starts up.