Larsen & Toubro Ltd., India’s biggest engineering company, said sales growth may accelerate in the year ending March 31 as it wins projects to build roads, rail network and power plants. The company based in Mumbai forecasts sales to expand 20 percent this year after revenue rose 8.3 percent in the 12 months that ended March 31, Executive Vice President for Finance R. Shankar Raman said at a briefing today.