The hardest part is in ensuring that the satellites are launched in different directions to avoid them colliding when being deployed in orbit. These satellites

The hardest part is in ensuring that the satellites are launched in different directions to avoid them colliding when being deployed in orbit. These satellites have to be in the same orbit but with increasing distance between them. From what I understand, these satellites were injected into the heliosynchronous orbit (https://en.wikipedia.org/wiki/Sun-synchronous_orbit https://en.wikipedia.org/wiki/Sun-synchronous_orbit) at different slots, different angles and at different times. However, the sole idea behind deploying 104 satellites is not to create a record of some sort but to utilize the maximum capacity of the workhorse rocket (PSLV). This results in greater ROI for the Space Agencies (Antrix / ISRO) as most of these 104 satellites (101 I think) were foreign satellites. According to this article: http://tech.firstpost.com/news-analysis/isro-to-recover-half-the-cost-of-record-breaking-pslv-c37-launch-from-foreign-customers-361311.html http://tech.firstpost.com/news-analysis/isro-to-recover-half... ISRO will recover half of the total cost incurred for the launch from foreign satellites mounted on the PSLV.