Addressing the 20th National Council of the ruling Awami League (AL) here, Prabhakar said Hasina is a "jononetri".
"I am more than convinced that you are a true jononetri (people's leader) not only of the country but also of the entire sub-continent," Prabhakar said, referring to Hasina.
He is visiting Bangladesh to attend the council on an invitation by AL, which steered Bangladesh's independence struggle and the Liberation War with Pakistan in 1971.
Indian National Congress, said to be a traditional AL ally, sent Ghulam Nabi Azad as its representative to the council.
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He praised Hasina for fighting terrorism in the country.
Under Hasina's leadership AL was elected to power thrice.
Opening the party council, Hasina urged party leaders and activists to take oath to stamp out poverty from Bangladesh.
Hasina asked them to prepare a list of poor people in their areas for their rehabilitation so that they could live with "dignity".
The council is expected to elect new leaders of the party for the next three years, but political analysts and party sources said Hasina was likely to retain her position as the party president.
She has been serving as the party president for more than 35 years since 1981 when she was living an exiled life in India. She took refuge in India after the August 15, 1975, assassination of her father and Bangladesh's founder 'Bangabandhu' Sheikh Mujibur Rahman along with most of his family members in a military coup which also toppled his post independence Awami League government.