Turns out one of my friends had done his Bachelor's engineering project (kind of like the BS Senior Design project in US colleges) at ISRO, and he was working on something that would be part of the probe project. He was there when the goverment pulled off Pokhran.
He tells me that because of the diplomatic fallout, all international technology transfer deals ISRO had with various Western organizations instantly were unilaterally canceled by the foreign parties. (Even in the commercial arena, I know of international collaboration projects that were abruptly canceled. I think Pokhran was a very stupid, shortsighted move by the government to score brownie points with the population just to confirm what the world already knew.)
My friend estimated the Pokhran fallout set them back at least 4 years, because suddenly a bunch of technology they were expecting to get ready-made, they had to start researching and developing themselves from scratch.
And yet when the Moon Impact Probe finally happened, it was right on schedule.