I am not against cheats. I use resetsim, moveobjects everytime. But most testing cheats spoil the game. That day when someone dies, the grim stays for sometime, so i thought i could get him. I use the cheats and move-in him in the household. I had the Grim saved in the bin at that moment. Anyhow, thanks to everyone for responding to my help request and for giving me tons of tips.
Chetan.
[P.S. Did Grims age? I read somewhere that they don't age. But he is aging from the day I moved him in the house. And they have no favourites.]