Net profit rose to $2.38 billion (1.55 billion pounds), or 38 cents per share, for the first quarter, from $2.33 billion, or 36 cents per share, a year earlier.
Excluding items, the company earned 51 cents per share.
Revenue fell to $10.86 billion.
(Reporting by Ankur Banerjee in Bengaluru; Editing by Saumyadeb Chakrabarty)