New Delhi, Sep 22 (ANI): ISRO on Monday successfully test fired the main liquid engine of the India’s Mars Orbiter Mission which was dormant from 10 months. Scientist Amitabh Pandey commenting on the success of the fire test said that since the engine was dormant, it needs to be tested so that it can be successfully used on 24th for entering the mars orbit. He further said that he is hopeful that the Mars Mission will successfully enter the Mars on the morning of the 24th September.