The Indian space Research Organization (ISRO) is all set for the year's last space mission, orbiting communication satellite CMS-01 (formerly GSAT-12R) on Thursday at 3.41 p.m. with its rocket PSLV-C50. The 42nd communication satellite of India, it will have a mission life of seven years. According to the Indian spance agency, the filling of fuel and oxidizer for the second stage of the rocket has been completed. The countdown for ISRO rocket launch progressing smoothly at the Sriharikota rocket port in Andhra Pradesh. The PSLV in the normal configuration is a four-stage/engine expendable rocket powered by solid and liquid fuels alternatively with six booster motors strapped on to the first stage to provide sufficient thrust during the initial flight moments. ISRO has PSLV variants with two and four strap-on motors, larger PSLV-XL and the Core Alone variant without any strap-on motors. The choice of the rocket to be used for a mission depends on the weight of the satellite and the orbit where the satellite is to be orbited. Also Read: PM Modi to address farmers tomorrow amidst ongoing protest 40% Indian professionals expect new jobs to boost next year: LinkedIn ISRO effectively launches satellite CMS-01 onboard PSLV-C50