In September it was Vodafone and today (Dec 23) it is Cairn Energy. The Indian government has lost two tax arbitration awards in the last 3 months. Both these cases are a fallout of the controversial retrospective tax amendment made to the tax laws in 2011. CNBC-TV18 learns that the arbitration tribunal has ruled that India's tax demands in lieu of Cairn were a breach of fair treatment under the bilateral investment protection pact with the UK. Experts discussed this in an interview with CNBC-TV18.