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Is there no other way to do things other than stealing? India's space program goes back to the late 60s. When faced with technology sanctions from the United States, they studied up the fundamentals, researched by trial and error and learnt from the mistakes and sucesses of other bigger space organizations. They know their limits, in terms of budget and governmental support. But they've persisted and continuously pushed their own limits, come up with the most efficient ways of achieving missions. Ex, Mangalyaan, Chandrayaan 1 and now the Chandrayaan 2. India has even launched a constellation of its own Positioning System of Satellites, the IRNSS, which is yet to be comissioned into public use.

In short, ISRO has simply learnt to be efficient and adaptive. Relied extensively on first principles and fundamentals. It is an really inspiring story of ingenuity and innovation. More "discovered and developed" than "acquired".