"Dhoni is a defensive captain who allows opposition to make a comeback in the game. His record is good at home pitches only like any other Indian captain. There is nothing special about it. We need aggressive captains like Mansoor Ali Khan Pataudi to win matches abroad," Amarnath told PTI Bhasha.
India had lost successive overseas Test rubbers in England (0-4) in 2011 and Australia (0-4) in 2011-12 and more recently in South Africa (0-1) and New Zealand (0-1).
"A captain has to lead from the front. Not a single Test captain in the world bats at number seven. What kind of example you are going to set. I sincerely feel that this is high time to relieve him from Test captaincy and although he is a match winner in ODIs, they should look at an option in shorter format as well," said the hero of India's 1983 World Cup triumph.
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"Gautam (Gambhir) was an option who had the experience but since he is out of contention now, Virat is an obvious choice. He has shown leadership qualities at various levels. I think there should be different captains for different formats," the 63-year-old said.
Amarnath also lashed out at India coach Duncan Fletcher whose appointment, he thinks, hasn't yielded desired results.
"I don't understand what is the use of having him (Fletcher) if he is not delivering. Everyone is talking about the players, captain but nobody is raising questions on coach and support staff. I think Indian team needs an Indian coach.