Hazare said he has learnt that the order was issued not only to his outfit but also to 16 other NGOs which had "corruption" in their name.
"The government should be tackling corruption. Organisations like ours have come up as the government has failed to do this," Hazare said in his village Ralegan Siddhi.
"Our functioning is transparent. Why was no objection taken when the organisation was formed?" he asked.
"We have not got the notice. After we receive the notice, we will seek legal opinion and go to court if needed," he added.