MUMBAI, Feb. 14 -- Passenger vehicle sales in India fell the most in three months in January, underscoring that a prolonged slump in demand could continue as consumer sentiment remains weak in a slowing economy while automakers adjust production ahead of a transition to new emission norms.

Sales of cars, utility vehicles and vans declined 6.2% to 262,714 units in January from a year earlier, according to data issued on Monday by the Society of Indian Automobile Manufacturers (Siam).

Car sales in India are counted as factory dispatches or wholesales and not retail sales. Passenger vehicle sales had fallen 1.24% in December and 0.84% in November, which followed a 0.28% rise in October. The decline came despite a 0.29% increase in sales of ...