The board of directors of Hindustan Aeronautics has announced a final dividend of ₹15 a share and a sub-division of existing one equity share of the face value of ₹10 each into two shares of ₹5 each. The stock on Tuesday closed 1.05 per cent lower at ₹3,661.25 on the BSE. HAL has fixed September 29 as the record date to determine eligible shareholders for the proposed split.