Tata Motors, part of India's powerful Tata group, is expected to push up full-year net profit by nearly 5 percent to 11.7 billion rupees, according to Reuters estimates.

India's $5 billion truck and bus industry, ranging from small pickups to big multi-axle trailers, has enjoyed 30 percent annual growth in the past three years, driven by demand to replace ageing trucks to shift more goods around Asia's fourth-biggest economy.

Tata, with 62 percent of India's truck and bus market, the world's fifth biggest, said net profit rose to 3.16 billion rupees ($72 million) in the fiscal third quarter to end-December from 2.11 billion rupees a year earlier.

Net sales rose 28.5 percent to 43.65 billion rupees, while other income, mainly returns from investments, rose 48 percent to 246.6 million rupees.