India's proposed mission to the moon in 2007-8, Chanrdayaan-I will now have a component that will also land on the dusty surface of the moon. This is not an official landing mission, so the 25 kg cargo will be as an impactor.
''Echoes of the Chandrayaan lander impact will tell us a lot about the interior of the moon,'' says Manuel Grande, group leader, planets and magnetospheres group, at Rutherford Appleton Laboratory in the UK, shortlisted for an experiment aboard Chandrayaan-1.-IE
Essentially it will be dropped to the surface and ISRO will check if they can control how and where it lands on the surface. This is obviously a predecessor to future official landing missions.