CHENNAI: Indian Space Research Organisation (ISRO) is set to launch an electronic intelligence satellite Emisat for the DRDO in March. ISRO Chairman K Sivan on Wednesday said that the Bengaluru-based space agency will also launch 28 third-party satellites and demonstrate its new technologies like three different orbits with a new variant of Polar Satellite Launch Vehicle (PSLV) rocket in March. Sivan however, did not give a specific date. Pakistan's claim IAF jet shot down, India denies Chairman told IANS "It is a special mission for us. We will be using a PSLV rocket with four strap-on motors. Further, for the first time we will be trying to orbit the rocket at three different altitudes.” He further added, "The main passenger for the PSLV rocket will be the defence intelligence satellite Emisat belonging to Defence Research and Development Organisation (DRDO). The satellite weighs about 420 kg. The 28 satellites belonging to our customers would cumulatively weigh about 250 kg.” Anushka Sharma to open an animal shelter and veterinary hospital It is to be noted that ISRO is also gearing up to launch two more defence satellites in July/August. The space agency will use its new rocket Small Satellite Launch Vehicle (SSLV) for launching these defence satellites. It may be recalled a defence imaging satellite Microsat R was launched by ISRO for the DRDO in January. Informing about Emisat, Sivan said that after launching this satellite at an altitude of 763 km, the rocket will be brought down to place the 28 satellites at an altitude of 504 km.