BUZZ — Jefferies maintains 'buy' on India's Hindustan Aeronautics on Tejas Mk1A delivery outlook
* Jefferies maintains "Buy" on Hindustan Aeronautics with TP of 6,800 rupees ** Says deliveries of aircraft Tejas Mk1A are a key trigger for the stock; programme accounts for 43% of the co's order book ** Notes HAL's 2.55 trillion rupees ($26.57 billion) order book and 1.8 trillion rupees order pipeline provide strong