Maruti Suzuki, the country's leading car maker, reported a lower than estimated net profit in April-June, due to a surge in raw material costs and adverse yen-rupeee exchange rate, news report on emCNBC-TV18/em said. The company reported a net profit of Rs 423.8 crore, down 22 percent from a year ago. A poll of emCNBC-TV18/em had estimated a 7.5 percent decline in net profit to Rs 507 crore. [caption id=attachment_394929 align=alignleft width=380