(c) if the principal at the time aforesaid does not reside in 2[ India], a power- of- attorney executed before and authenticated by a Notary Public, or any Court, Judge, Magistrate, 4[ Indian] Consul or Vice- Consul, or representative 5[ of the Central Government:
Provided that the following persons shall not be required to attend at any registration- office or Court for the purpose of executing any such power- of- attorney as is mentioned in clauses (a) and (b) of this section, namely:--
persons who by reason of bodily infirmity are unable without risk or serious inconvenience so to attend;
persons who are in jail under civil or criminal process; and
persons exempt by law from personal appearance in Court. 1[ Explanation.-- In this sub- section" India" means India, as defined in clause (28) of section 3 of the General Clauses Act, 1897 (10 of 1897 )].