The day-long "Brahmin and Purohit Sammelan" was held by the TMC's Birbhum district president, Anubrata Mondal, who is a strong critic of the BJP and its policies.
Mondal said the convention was organised to highlight the "misinterpretations" of Hinduism by the BJP and discuss what the Hindu religion stood for.
"Hinduism is being misinterpreted by the BJP. We will discuss the real meaning of Hinduism," he told reporters.
The saffron party has accused the TMC leadership of practising "soft Hindutva" in a bid to stop the Hindu voters of the state from tilting towards the BJP.
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Chief Minister Mamata Banerjee's recent visit to the Sagar island to take stock of the arrangements for the January 14 Makar Sankranti festival also came under attack from the saffron party.
Mondal refuted the "soft Hindutva" allegation and said the TMC would also organise a conference of Muslim clerics this month.
Addressing the meet, he stressed the need to make a new generation of Hindu priests as a "society cannot exist without Hindu priests".
He also described the priests as the "teachers of the society".
The conference began with the chanting of vedic mantras.