i had purchased a LAL CHAND & SONS ADRESS 53, Shardhanand marg ,( G.B. ROAD ) DELHI -110006. 30 KVA 3 PHASE crompton greaves alternator INVOICE NO - 1577 DATE 23-05-11. SERIAL NO - KBAG - 4710 .FRAME NO-G2S160M2R But since APRIL it is not working. COMPLAINT NO - 1205010697 date 07-05-12 it is under warranty and we tried to CROMPTON Authorised service Centre YOGEH ENTERPRISES. luv kush market, LAL KUAN ,G.T. ROAD , GHAZIABAD , ( U.P ) . s.no -055 date 15-05-12 Repair time 8 day. Not proper repair next day again fault. So bad responce CROMPTON Authorised service Centre YOGEH ENTERPRISES. 12 days second time complaint no 1205033635 date 17-05-12.