Winding up --Grounds for winding up--Inability to pay debts--Failure to pay after notice--Statutory notice sent by telegraphic mode and delivered to registered office--Valid mode of service--Statutory notice sent from time to time by different modes returned with postal remarks "intimation" and "intimation not claimed"--Endorsement recorded on envelope "returned unclaimed"--Refusal to accept service of notice--Presumption of proper service of notice on addressee--Winding up ordered--Companies Act, 1956, ss. 433(e), 434(1)(a), 439(1)(b)--General Clauses Act, 1897, s. 27-- Mrs. Sarita Paw*nkumar Goenka v. Jai Prakash Strips Ltd.(Bom)