Gujarat Police detained Mevani last night, who led a Dalit movement to protest against the Una flogging incident, in view of Prime Minister Narendra Modi's visit to his home state.
AAP leader Ashutosh claimed that several Patidar leaders and party volunteers were detained since yesterday.
Modi, who landed in Gujarat yesterday, spent his birthday with his mother Hiraba.
"Mevani was arrested immediately after he landed in Ahemdabad from Delhi. Many AAP volunteers have also been detained. This shows the BJP fear that its days in the state are numbered," Ashutosh said.
BJP is facing a challenge in Gujarat ahead of next year's polls in the aftermath of Patel quota agitation and the protests of Dalit community after the Una atrocity incident.
Mevani, who floated the Dalit Atyachar Ladhai Samiti following flogging of Dalits in Gujarat's Una over rumours of cow-slaughter, had quit AAP, but sources said he still maintains links with the party.
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