
Nope, nope, nope...
They don't say that 750 People are working on it. They say 750 "resources" are working on it. A computer is a resource, The janitor is a resource, Against all evidence, Management can count as a resource. Dont be fooled into thinking that just because they say 750 resources are working on it, that that means 750 people are involved. Or at least dont be fooled into thinking that means 750 coders are working on it.
Plus any firm that would refer to workers as "resources" is giving you a very good view of just how much they value their employees. If you needed more evidence to avoid Infosys like the plague, I'd say that is one huge red flag, right there...