Vehicle sales across categories registered a decline of 8.62 per cent to 20,86,358 units from 22,83,262 units in May 2018.
Corporate leaders said a stable government at the Centre will help boost infrastructure spend, address agricultural distress, and encouraging employment.
The country's biggest carmaker is now more valuable than the combined market cap of the three leading automobile companies in the country: Tata Motors (Rs 1,18,684 crore), M&M (Rs 86,336 crore) and Ashok Leyland (Rs 34,700 crore).
Various factors, including robust demand in rural markets and good response to new models, helped in driving the sales.
Sales of the compact segment comprising Swift, Estilo, Ritz, Dzire and Baleno increased by 4.1 per cent to 50,362 units