Joshi was Thursday sent to judicial custody for 14 days in Moradabad.
'The action is not only condemnable but also shocking. They will have to repent for this. They will never be able to be successful in their intentions by burning their houses. Mayawati has kept the BSP under discipline the whole night. The entire fire incident is staged. We have raised the issue in the Lok Sabha,' said Mishra.
The BSP leader said his party will hold a meeting chaired by Mayawati in Lucknow later Thursday evening to 'decide the future course of action'.
'There will be a meeting chaired by the party's national president to decide the future course of action. It a sensitive matter,' Mishra told reporters.
He added that 'women and the educated class are agitated' by the remarks of Joshi.