1) Attestation refers to the act of signing a document by witnesses to verify the voluntary execution of the document by the primary parties. 2) There must be at least two witnesses for a valid attestation under Indian law. The witnesses are not required to be present at the same time and no particular form of attestation is needed. 3) For an attestation to be valid, the witnesses must sign with the intention to attest (animus attestandi) and either see the primary parties sign or receive acknowledgment of their signatures.