effected when it is sent to the correct address by registered post. In view of the said presumption, when stating that a notice has been sent by registered post to the address of the drawer, it is unnecessary to further aver in the complaint that in spite of the return of the notice unserved, it is deemed to have been served or that the addressee is deemed to have knowledge of the notice. Unless and until the contrary is proved by the addressee, service of notice is deemed to have been effected at the time at which the letter would have been delivered in the ordinary course of business. This Court has already held that when a notice is sent by registered post and is returned with a postal endorsement refused or not available in the house or house locked or shop closed or addressee not in station, due service has to be presumed. [Vide Jagdish Singh Vs. Natthu Singh,3 [AIR 1992 SC 1604]; State of M.P. Vs. Hiralal & Ors.,4 [(1996) 7 SCC 523] and V.Raja Kumari Vs. P.Subbarama Naidu & Anr.,5 [(2004) 8 SCC 774]. It is, therefore, manifest that in view of the presumption available under Section 27 of the Act, it is not necessary to aver in the complaint under Section 138 of the Act that service of notice was evaded by the accused or that the accused had a role to play in the return of the notice unserved.