S. 147 : Reassessment-Non-Resident-Permanent Establishment-Transactions found to be at arm’s length-Supplying materials through direct imports to Indian Railways-Allegation of wholly owned subsidiary-No material to prove conclusively that Indian Subsidiary’s place assessee’s Permanent Establishment falling in any of three Categories. Petition is allowed. Liberty is given to Department to independently examine whether Delhi Office of assessee a Permanent Establishment or service Permanent Establishment-DTAA-India-USA. [S.92CA, 133A, 148, Art.5(1), 5(2), 5(3), 5(4)]