Mukesh Ambani-owned Reliance Industries reported a 43 per increase in its net profit helped by all business verticals - from oil to retail- performing well in the second quarter. The company registered a net profit of Rs 13,680 crore or Rs 20.88 per share in the September-end quarter compared to Rs 9,567 crore or Rs 14.84 crore per share in the corresponding period, last year.