Article: In its first century and half, the EIC used a few hundred soldiers as guards. The great expansion came after 1750, when it had 3000 regular troops. By 1763, it had 26,000; by 1778, it had 67,000. It recruited largely Indian troops, and trained them along European lines. The company, fresh from a colossal victory, and with the backing of its own private well-disciplined and experienced army, was able to assert its interests in the Carnatic region from its base at Madras and in Bengal from Calcutta, without facing any further obstacles from other colonial powers.

Question: in 1778 most of the troops that the EIC had were from where?
Indian