"What is preventing action against the accused in water tanker scam even after the report of the inquiry committee formed by Water Minister Kapil Mishra?" said Delhi BJP president Satish Upadhyay who led the protesters at Delhi Jal Board headquarters Varunalaya.
"People want to know why Chief Minister Arvind Kejriwal is silent on the arrest of the persons involved in the scam which took place during Sheila Dikshit's rule," he said.
Leader of Opposition in Delhi Assembly, Vijender Gupta asked the government to call a special assembly session to discuss the issue.
Party's National secretary Sardar R P Singh "challenged" Kejriwal to tell whether his government has ordered investigation in even a single case of alleged corruption committed during Sheila Dikshit rule.
During the protests, BJP workers burnt effigies of Kejriwal.
DJB chief Mishra had in August last year highlighted the alleged scam in hiring water tankers, which caused a loss of Rs 400 crore to the state exchequer.