"That was Yesterday - It's All Been Changed !"
and that in a way was all our yesterdays, the experience of all who served at one time or another. The ability to take such sudden changes of direction on the chin is one of the abiding qualities of the veteran, for once learnt it stays with you for the rest of your life.
A site dedicated to the Mosquito's history touches on those in India, and Yelahanka in particular here:
Phorum :: WWW.MOSSIE.ORG Discussion Forum :: Far East
Little is said in Wikki of the problems that you mention, Danny, other than to say :
In November 1944, several crashes occurred in the Far East. At first, it was thought these were as a result of wing structure failures. The casein glue, it was said, cracked when exposed to extreme heat. This caused the upper surfaces to "lift" from the main spar. During the ensuing investigation, it was concluded that there were construction defects found at two plants, Hatfield and Coventry, where it was found that the "Standard of glueing...left much to be desired”.[74] However, the main reason for the failures, the Air Ministry concluded on 1 January 1945, was the weather conditions in Asia, thereby endorsing the view of Major Hereward de Havilland, leading the investigation. To solve the problem, a sheet of plywood was set along the span of the wing to seal the entire length of the skin joint along the main spar and the casein glue was replaced by formaldehyde, which was better able to resist deterioration in high humidity conditions.[74]
here:
de Havilland Mosquito - Wikipedia, the free encyclopedia