The Monday launch of the PSLV-C45 rocket by the Isro witnessed several firsts. For the first time in India's space history, an Isro rocket injected payloads in three different orbits in a single mission. PSLV-C45 first injected electromagnetic intelligence satellite Emisat in the 748 km orbit and thereafter it launched 28 foreign satellites in the 504 km orbit.

from Times of India https://timesofindia.indiatimes.com/india/many-firsts-in-isros-pslv-c45-launch/articleshow/68679615.cms