Reacting to this, USL's scrip rose sharply by 15 per cent to touch its one-year high of Rs 2,940.55 on the BSE.
On the NSE, the stock zoomed 14.99 per cent to Rs 2,940.80 - its 52-week high.
The company has launched a tender offer to the public shareholders of USL to acquire up to 37,785,214 shares, representing 26 per cent of USL's fully diluted issued share capital as on today, Diageo Plc said in a statement.
Diageo will fund the consideration payable under the tender offer through existing cash resources and debt.