<div>Signalling improving economic activity. India's annual infrastructure sector growth hit a nine-month high of 7.3 per cent in June, government data showed on Thursday, led by a surge in cement and electricity output.<br /><br />The output recorded an annual 2.3 per cent expansion in May.<br /><br />The sector, which comprises coal, crude oil, oil refining, natural gas, steel, cement, electricity and fertilisers, accounts for 37.9 per cent of India's industrial output.<br /><br />Activity in the eight core sectors -- coal, crude oil, natural gas, petroleum refinery products, fertilizers, steel, cement and electricity – are considered as vital cog in economic growth and a higher growth number should reflect in heightened industrial activity and GDP growth numbers for the quarter, economists said. The April-June quarter core sector growth stood at 4.6 per cent versus 3.7 per cent in the same quarter last year, data showed. The eight core sector industries carry a 37.9 per cent weightage in the index of industrial production.<br /><br />The April-June quarter core sector growth stood at 4.6 per cent versus 3.7 per cent in the same quarter last year, data showed. The eight core sector industries carry a 37.9 per cent weightage in the index of industrial production. <br /><br />GDP growth in the most recent quarter grew at 4.6 per cent, capping two years of below 5 percent growth.<br /><br /><img width="630" vspace="3" hspace="3" height="960" align="middle" src="/image/image_gallery?uuid=9b8695c3-0af9-42ec-9327-8a89061d9266&groupId=36166&t=1406810717472" alt="" /><br /> </div>