Cars Q&A

I have an Opel Astra 1996 model,with comprehensive ins. from Cholamandalam expiring on 25th. Aug. 2009. Have never claimed. But now I want only third party ins.Chola is refusing third party, as per my agent.The value of the car is 55,000.00 only. I would appreciate if anyone tells me hw to take the same from any other ins. company. Thanx