The Nuwal family, promoters of Nagpur-based Solar Industries India, has joined India's wealthiest promoter groups after the value of its 73.1% stake climbed to nearly ₹1.2 lakh crore. The surge follows the company's market capitalisation rising to around ₹1.6 lakh crore, driven by strong explosives and defence businesses. CEO Manish Nuwal is the largest shareholder with a 38.9% stake.