in mission Chandrayaan-3
India is friends with Japan (Japanese will provide a rocket and a lunar rover)
You are confusing the planned Chandrayaan-3 mission with the proposed Lunar Polar Exploration Mission. Chandrayaan-3 will be launching this year on a GSLV rocket made by India, and it is the Lunar Polar Exploration Mission that would be launched with a Japanese rocket.
Chandrayaan-3 will be yet another Indian attempt to soft-land on the surface of the Moon and it would skip the orbiter part of the mission. If this mission is failed, according to sources, it would be a huge setback for the Indian human space program, despite the mission won't carry any humans onboard. The reason is that Gaganyaan (whose name sounds more like "aircraft" than "spacecraft" to me), which will launch after Chandrayaan-3, is designed to re-enter and land on an atmospheric planet like Earth, while Chandrayaan-3 will land on a celestial body without any atmosphere like the Moon.
Since the mission profile of Chandrayaan-2 and Chandrayaan-3 will be similar (except the latter won't carry any orbiter), we can use the
Chandrayaan-2 add-on to simulate Chandrayaan-3.