Chandrayaan 2 carried a total of fourteen payloads- eight for the orbiter, four for the lander, and two for the rover. Though NASA and the European Space Agency initially planned to provide scientific instruments, ISRO had to reject them due to weight restrictions.
In fact, ISRO in 2010 made it clear that it won’t be carrying foreign payloads. However, a month before its launch, NASA made an agreement with ISRO in which it was decided to carry a small retro-reflector developed by the NASA. This was added to the lander’s payload, which contained other instruments designed for measuring seismic activity, determining the elemental composition of the lunar surface, mapping the lunar surface, studying electron density and so on.
Picture Credit : Google