India’s foreign exchange reserves surged by a record $44.90 billion in a single week to hit a fresh lifetime high of $785.71 billion, Reserve Bank of India data showed on Friday, extending a sharp recovery in the country’s external buffers following large foreign currency inflows in recent months. The reserves stood at $785.706 billion in the week ended September 4, up from the previous record of $740.803 billion a week earlier, when the forex kitty had risen by $11.475 billion, according to the RBI.