India, July 21 -- "May you live a hundred years."

It's a common refrain one hears on their birthday. Most treat it as a heartfelt wish rather than a realistic expectation. No one really expects to live till a hundred.

But three founders decided to build a company around making this wish a little more achievable, even if not many might believe it possible.

That idea is embedded in the name itself. Cent (short for century, as the startup says) is betting that living longer shouldn't be left to chance, genetics, or a late-stage diagnosis. Instead, it should begin with catching diseases before they have a chance to take hold.

For a country that prides itself on producing some of the world's largest numbers of doctors and being the birthpl...