Police detained around 130 protesters.
Athawale was speaking at the varsity campus to mark anniversary of the 'name-expansion' of Marathwada University.
In the 1990s, following an intense agitation by Dalits, the state government expanded the varsity's name as Dr Babasaheb Ambedkar Marathwada University.
Following the violence at Koregaon Bhima this month where Dalits visiting a war memorial -- marking the victory of the East India Company army consisting of Dalit Mahar soldiers over the Peshwas -- came under attack, Dalit organisations had resolved to celebrate the name-expansion day on one platform.
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As the Union minister, who is a prominent Dalit leader from the state, spoke last night, protesters tossed chairs in air and shouted slogans against him.
While Athawale continued his speech, his supporters formed a cordon around him.
Assistant Commissioner of Police Nagnath Kode said police detained some 130 protesters who were later released.