According to reports, locals cleansed the Janaki temple located in Janakpur with Gangajal after president, who is a widow, visited the temple on the occasion of the Ram Janaki Bibah Mahotsab last week.
The temple was cleansed pointing out that offering of worship there by a widow was considered unholy.
Janakpur is the ancient capital of Mithila where the ceremony of Ram and Sita's anniversary is celebrated.
Her visit witnessed huge protests by the Madhesis.
Women's organisations close to various political parties urged government to take action against miscreants who mistreated president during the visit.
Bidhya Devi Bhandari from the ruling CPN-UML was elected as Nepal's first woman President after she defeated her rival from Nepali Congress by more than 100 votes in October this year. She defeated Nepali Congress leader Kul Bahadur Gurung.