Reuters: India has asked Britain to extradite billionaire jeweler Nirav Modi, one of the main accused in the $2 billion loan fraud at state-run Punjab National Bank (PNB). Modi’s whereabouts have been unknown since PNB in January said that two jewelery groups headed by Modi and his uncle, Mehul Choksi, defrauded the bank for years by raising foreign credit using fake guarantees.The international police agency Interpol last month issued a request to find and arrest Modi.But on Thursday, India’s foreign affairs ministry told parliament it had sent an extradition request for Modi to Britain.