The Indians will reply that Nasa, the American space agency, also said that there was no evidence of water on the Moon - until the Indian lunar orbiter Chandrayaan-1 reported the presence of water molecules in the lunar soil in 2008. They might also mention that if the United States waited until there were no more poor Americans before sending people to the Moon, the first US mission might leave 50 years from now. Or maybe not even then.
The Indian space programme operates on an amazingly small budget of about US$1 billion ($1.2 billion) a year, but it has put dozens of satellites in orbit that provide practical benefits for earthbound Indians: remote sensing, flood management, cyclone alerts, fishery and forest management etc. But that's all in near space; the question is really whether long-range space exploration is a rational proposition.
Nationalism is part of the motivation behind every country's space programme and, while it has its comical side, it does at least persuade the political authorities to provide the large sums that are needed. China is planning to land a rover on the Moon next month and is talking about a manned landing there by 2024. That will certainly speed up India's manned space programme.
Like the old Russo-American space race, the Chinese-Indian one will accelerate the development of new technologies and techniques. It will fill some of the gap left by the loss of momentum in the older space powers and some useful science will get done. But the biggest reason for welcoming the entry of new players in space exploration is one everybody is too embarrassed to mention: the future of the human race.
Well, almost everybody. Elon Musk, founder of SpaceX, the private company that aims to dominate the delivery-to-orbit service once provided by Nasa, actually wants to create a human colony on Mars in his own lifetime - and he's 41 now.
He is a serious player, whose large fortune (derived from his creation and subsequent sale of PayPal) is now devoted to manufacturing electric cars and building space transportation systems. Both projects are prospering, and he sees them as providing the financial and technological basis for pursuing his real goal: spreading human beings beyond this single planetary habitat while the launch window for that is open.
Musk was quite frank about that in an interview with Rory Carroll in The Guardian newspaper last July. "The lessons of history suggest that civilisations move in cycles," he said. "You can track that back quite far - the Babylonians, the Sumerians. We're in a very upward cycle right now and hopefully that remains the case. But it might not.
"There could be some series of events that cause that technology level to decline. Given that this is the first time in 4.5 billion years where it's been possible for humanity to extend life beyond Earth, it seems like we'd be wise to act while the window was open and not count on the fact that it will be open a long time."
I'll let you in on a little secret. That is a big part of the motivation (though a rarely admitted part) for half the people who work in any of the national space programmes, including India's. They value the science, and they may even revel in the glory from time to time, but that's what it's really about.
Gwynne Dyer is an independent journalist whose articles are published in 45 countries.