The Indian space agency, as part of augmenting telecommunication services, had earlier launched communication satellites GSAT 14 and GSAT 6, respectively.
GSAT 14 was launched in January 2014 while GSAT 6 on GSLV in August 2015.
"In its 10th mission, scientists at Arianespace recently integrated GSAT-15 satellite with the launcher (Ariane 5)", Arianespace said in a statement.
Preparations for Arianespace's sixth heavy-lift mission have advanced into payload integration phase with GSAT-15 satellite making its first contact with the launch vehicle, it said.
Also Read
"Flight VA227 (Ariane 5) is set for a November 10 lift off. It will mark Arianespace's 10th launch this year", it said.
GSAT-15 would be launched along with Arabsat-6B, set up by the Arab League Inter-governmental Organisation. Arabsat will be launched to provide telecommunications and television broadcast services for Middle East and African region.
The mission life of GSAT-15 will be 12 years.