OK I discovered that the temperatures that my Imac is running at is completely safe! I discovered that most of the components can withstand temperatures upto 80 degress centigrade, and the CPU thing can withstand 100 degrees centigrade!
Well thank's to Mr. Malkana (Saleem) for answering my question, and Jaideep I did learn a lesson to search carefully on Google™!
Thanks,
Pritpal Samrai.