Section 29(1)(a) in Daman and Diu Value Added Tax Regulation, 2005
(a)in the case of an individual, by the individual himself, and where the individual is absent from India, either by the individual or by some person duly authorised by him in this behalf and where the individual is mentally incapacitated from attending to his affairs, by his guardian or by any other person competent to act on his behalf;