India's Tata Motors reported a surprise drop in second-quarter profit and its first revenue decline in 10 quarters on Friday, hurt by weakness in both its luxury vehicles unit, Jaguar Land Rover, and domestic businesses.

Tata Motors saw its net profit drop more than 11 per cent (year-on-year) to Rs 3,343 crore in the July-September period amid slowing revenue growth in the luxury unit Jaguar Land Rover (JLR) and commercial vehicles business.

Profitability in JLR was affected by temporary aluminium supply constraints which resulted in EBIT margins of 5.1%, down 220 basis points.

India's Tata Motors reported a surprise drop in second-quarter profit on Friday, hurt by weakness in both domestic sales and its luxury vehicles unit. The company posted a profit of 33.43 billion rupees ($396.

Lower wholesales for JLR and the India passenger vehicle business both impacted the company's operational performance