Diageo Plc, the multinational beverages company based in London, has offered $1.9 billion to increase its stake in India´s United Spirits Ltd. At the moment Diageo holds 28.8% of United Spirits and if successful, would end up with 54.8% of the India´s largest spirit company, offering 3,030 rupees ($50.30) per share. Even though two-thirds of Indians do not drink alcohol for religious or cultural reasons, Deirdre Mahlan, chief financial officer …