The budget cost of Luna 25 and Chandrayaan are as follows:

The budget cost of Luna 25 and Chandrayaan are as follows:

* **Luna 25:** The budget for Luna 25 has not been officially disclosed by the Russian Space Agency ROSCOSMOS. However, it is estimated to be around $200 million.

* **Chandrayaan-3:** The budget for Chandrayaan-3 is under Rs 615 crore (around $80 million).

It is worth noting that the budget for Luna 25 is significantly higher than the budget for Chandrayaan-3. This is likely due to the fact that Luna 25 is a more complex mission. It will be the first Russian spacecraft to land on the Moon in nearly 50 years, and it will be carrying a number of scientific instruments to study the lunar surface.

Chandrayaan-3, on the other hand, is a follow-up mission to Chandrayaan-2. Chandrayaan-2 was India's first mission to soft-land on the Moon, but its lander crashed during the final descent. Chandrayaan-3 will attempt to land on the Moon in the same area where Chandrayaan-2 was supposed to land.

Both Luna 25 and Chandrayaan-3 are important missions that will help us to learn more about the Moon. It will be interesting to see which mission is more successful.