The Indian Space Research Organisation (ISRO) has reported that it had conducted a joint experiment with NASA to locate water-ice on Moon.

India's first lunarcraft Chandrayaan-1 and US’s Lunar Reconnaissance Orbiter (LRO) have teamed up to trace presence of ice or water near the Moon’s North Pole.
 
ISRO has stated that the unique “Bi-Static” experiment had been performed collectively when Chandrayaan and Orbiter came closer while orbiting over the Lunar North Pole where the permanently shadowed Erlanger crater was situated.
 
During the experiment, Chandrayaan has transmitted the signals and the reflected signals had been received by the Orbiter using Synthetic Aperture Radar (SAR). The experiment took place for four minutes during which Chandrayaan and Orbiter were close enough to transmit information between them.
 
For that communication to take place, Orbiter, travelling at 1.6 km per second, had made some slight adjustments in its orbit before the experiment.
 
The Spacecraft Control Centre (SCC) at the ISRO Telemetry, Tracking and Command Network (ISTRAC) at Peenya in Bangalore had controlled and executed Chandrayaan’s operations.
 
All the data of the experiment has been collected at the United States Johns Hopkins University’s Applied Physics Laboratory, the ground station that had the visibility.
 
The data from Chandrayaan-1 has been collected, on Friday morning, at a giant antenna situated at the Indian Deep Space Network at Byalalu near Bangalore.
 
Observations from the experiment are now being analyzed by researchers from the ISRO and the NASA.
 
NASA has suggested that water or ice could be trapped in the permanently shadowed regions of the lunar poles that might be brought in by meteorites, which contain water-bearing minerals.