NEW DELHI: Maruti Suzuki India, the country's largest carmaker, will increase prices across its passenger vehicle lineup by up to Rs 30,000 from Aug, becoming the latest automaker to pass on rising manufacturing costs to buyers.In a stock exchange filing on Tuesday, it cited persistent increases in production expenses that had left it with little choice but to revise prices. Maruti said it had spent the past several months trying to offset higher expenses through internal efficiency measures and cost optimisation initiatives.Tata Motors implemented a price increase of up to 1.5% across its passenger vehicle range, including electric vehicles, from July 1.