Mukesh Ambani-led Reliance Industries (RIL) has significantly narrowed the gap with Tata group’s Tata Consultancy Services (TCS) in the race for the country’s most valuable firm. The difference in market capitalisation (m-cap) between the two bluechip companies is just 15 per cent following a 21 per cent jump in shares of RIL so far this year. Shares of TCS have gained only five per cent during the same period. On Monday, TCS’s m-cap stood at Rs 4.87 lakh crore, about Rs 63,516 crore, or 15 per cent more than that of RIL. Interestingly, about nine months ago, TCS’s m-cap was