IFB — repair of ifb microwave oven

i had purchased a IFB microwave oven in December 2013 at Mumbai and shifted to Faridabad Haryana in August 14.the oven was working satisfactorily till last week. It developed some defect last week and the complaint for defect rectification was made to the IFB toll free number. Subsequently the technician arrived and showed us the damage, probably by rats. Few wires were cut, the fan belt is also damaged and magnetron has been reported defective. The machine's is not under warranty, though i have asked for 2 yrs additional AMC. May i request you to let me know whether i would be entitled for warranty on magnetron (i believe it has 3 yrs warranty period). Apparently, there aint any approach route for rats, but then there surely is a sign of rats ingress. May be you would like to design the oven with some rat guards...May i also reply for an early reply. Thanking in anticipation.

Permanenet customer code 10504724
model 30SC3