Sources also said, a key sensor onboard the spacecraft developed a technical fault due to the thermal radiation.
According to Indian Space Research Organization (ISRO), Chandrayaan-1 achieved all of its mission objectives before the malfunction was detected. But the spacecraft has entered lunar orbit last Nov 2008 can no longer orient itself with high precision.
Speaking to the media, ISRO chief G Madhavan Nair revealed that a key sensor onboard India's moon mission has malfunctioned. He also said, however Chandrayaan-1 had achieved all of its mission objectives before the malfunction was detected.