Chandrayaan-1 was India's first lunar exploration mission, and it was launched in 2008. The mission had five primary scientific goals:

• To study the chemical and mineralogical composition of the lunar surface: This was done using a variety of instruments, including an X-ray fluorescence spectrometer, a hyperspectral imaging spectrometer, and a laser altimeter.
• To search for water ice on the lunar surface: This was done by looking for signatures of water in the lunar regolith, the loose material that covers the surface of the Moon.
• To study the lunar crust: This was done by looking at the composition and thickness of the crust, as well as the distribution of craters.

• To study the lunar interior: This was done by looking at the gravity field of the Moon, as well as the seismic activity on the Moon.
• To develop and demonstrate new technologies for lunar exploration: This was done by testing a variety of new technologies, such as a lunar rover and a lunar impact probe.

Chandrayaan-1 was a successful mission, and it achieved all of its primary scientific goals. The mission found evidence of water ice on the lunar surface, and it also made important discoveries about the chemical and mineralogical composition of the lunar surface. Chandrayaan-1 also helped to develop new technologies for lunar exploration, and it paved the way for future Indian lunar missions.

Here are some of the key findings of Chandrayaan-1:

• Water ice: The mission found evidence of water ice in the permanently shadowed regions of the Moon. This water ice could be a valuable resource for future lunar missions.
• Mineralogy: The mission mapped the chemical and mineralogical composition of the lunar surface. This information will help scientists to understand the history of the Moon and its formation.
• Crust: The mission studied the thickness and composition of the lunar crust. This information will help scientists to understand how the Moon formed and evolved.
• Interior: The mission studied the gravity field and seismic activity of the Moon. This information will help scientists to understand the internal structure of the Moon.

Chandrayaan-1 was a landmark mission, and it made significant contributions to our understanding of the Moon. The mission's findings will help to guide future lunar exploration, and they will also help us to better understand the history and evolution of our solar system.