After announcing a 25 per cent 'reciprocal tariff' on his "friend" India, plus a penalty for buying Russian weapons and oil, Donald Trump said Thursday the US had struck a trade deal with Pakistan, including plans to develop its "massive" oil reserves. A disgruntled American President also slammed the Indian economy - the fourth largest in the world - as "dead" after failing to persuade Delhi to open its dairy and agriculture markets. Is this diplomacy or another one of Trump's tantrums? How should India respond?