Muscat Primary Court on Sunday sentenced former managing director P. Mohammad Ali and a manager, whose name is not mentioned in the report, of Galfar Engineering to 15 years in jail in all the five cases of bribing an oil company's officials, the Times of Oman reported on Monday.
Five Omani nationals from a state-run oil sector firm have also been jailed.
Ali have to pay 1.774 million Omani rials (about $259,7403) and the Indian manager from the same company 534,000 Omani rials as fines.
Apart from that, the court has also ordered that both the Indian expatriates be deported after they complete their jail terms.
A native of Kerala, Ali is the founder and managing director of Galfar, one of the biggest construction firms in Oman.