Pādodaka is holy water. Its prepared from bathing the Linga or guru

Guru

A guru is one who is regarded as having great knowledge, wisdom, and authority in a certain area, and who uses it to guide others . Other forms of manifestation of this principle can include parents, school teachers, non-human objects and even one's own intellectual discipline, if the...

's feet. It is one of the Ashtavarana

Ashtavarana

In Lingayat theology, the Ashtavaranas refer to the eight virtues that act as shields or coverings protecting the devotee from extraneous distractions and influences of Maya. Ashta means 'eight' and Avarana means 'covering'...

 or the 'eight protections' of Lingayatism

Lingayatism

Lingayatism, also known as Veerashaivism, is a distinct Shaivite denomination in India. It makes several departures from mainstream Hinduism and propounds monotheism through worship centered on Lord Shiva. It also rejects the authority of the Vedas and the caste system. The adherents of this faith...

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This holy water is used in many sacred occasions to call upon good fortune and celestial blessing. It is sprinkled across while entering into a new house, on the newly bought vehicle etc.