"It is a very wise decision. Not because he (Gandhi) is my brother, but he has shown excellence in every area he has worked...All kinds of roles he has assumed. He has been a bureaucrat, ambassador to so many countries and a governor," she told PTI.
Bhattacharjee said the commitment to excellence and perfection was in Gandhi's nature.
She congratulated the 18 political parties for their "wisdom" in picking the "right person".
Asked about the possibility of Gandhi's victory in the August 5 election, given the NDA's majority in the electoral college, Bhattacharjee said she was not looking at the results as she was not a political person.
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She added that she was "ignorant" about politics and did not know how the minds of politicians worked.
Bhattacharjee, however, stressed that the country needed people like Gandhi. "There is absolutely no doubt about that," she said.
Eighteen opposition parties yesterday chose Gandhi, the former West Bengal governor, as their joint candidate in the vice-presidential poll.
Gandhi's name was endorsed by all the 18 parties, including the JD(U), which had broken ranks with the other opposition parties to back NDA candidate Ram Nath Kovind in the July 17 presidential election.