According to the FIR lodged at Mehsana 'A' division police station, over 50 unidentified persons threw stones at BJP office near the railway station and broke several window-panes during the procession yesterday.
"The mob also broke some milk crates outside a dairy parlour near Toran Mata Chowk. We are investigating. No arrests have been made," said police sub-inspector F M Chavda.
He had suffered a bullet injury in the neck at Modhera cross-roads.
A large number of Patel community members had turned up for his funeral, local Patel leaders said.