IndiGrid is India's first infrastructure investment trust in the power sector. : Sterlite Power on Friday said it has sold 14.7 per cent stake held in India Grid Trust (IndiGrid) for Rs 840 crore to institutional and high net worth individual (HNI) investors. Sterlite Power has sold 14.7 per cent stake in IndiGrid with the transaction valued at Rs 840 crore at a unit price of Rs 98. The sale of its stake has been made to institutional and HNI investors, the company said in a statement.