Shri Ganesha is everyone’s favorite God and he too loves his devotees very much. But sometimes the devotee gets trapped in such a dilemma that it does not understand what to do and what not to do, one such dilemma is when the idol of Lord Ganesh gets damaged or broken.
If the Idols of Shri Ganesh gets damaged before installation puja, then replace the damaged statue with a new idol and immerse the damaged idols with water with reverence. If the idols is damaged after installation, then put rice grains on idol and it should be immersed.
If the statue is damaged on the third or fourth day of Ganesh Chaturthi, then immerse the Ganesh idols with all reverence and faith on any next coming day, following all worship process. Shri Ganeshprotects his devotees from all calamities and takes the calamities that come upon them.
Damage to the statue of Shri Ganesha can also be seen as Ganpati taking over the approaching disaster on his devotee on himself so that the devotee is protected.