Shares of Hindustan Aeronautics Ltd opened at ₹4,658 in the Friday’s session, and reached a high of ₹4,690, 1% gain. This increase followed reports that HAL might be upgraded from 'Navratna' to 'Maharatna' status by year-end, boosting investor optimism. HAL is an Indian aerospace and defence company that is involved in designing, development, manufacturing, and repairing.