In a media briefing held here, Congress leaders also alleged contents of a sting operation conducted on BJP leaders showed Gujarat government had provided a "safe passage" to the "chief conspirator" of former Home minister of state Haren Pandya's murder.
"Sohrabuddin Shaikh's associate Azam Khan is seen to have revealed that Gujarat government has helped a safe passage to Mufti Sufiyan, who is considered the main conspirator of the murder of former Minister of State for Home Haren Pandya," alleged state unit Congress president Arjun Modhwadia.
"A series of incidents in the last couple of days have revealed the conspiratorial face of this BJP government. This BJP government should resign immediately and with that demand we are also appealing to people to observe a state-wide bandh on coming Friday," Modhwadia said.
Referring to the contents of Vanzara's letter in which he announced quitting of IPS, Modhwadia alleged "the ten-page letter of Vanzara has not only opened the eyes of whole country but has shaken the people of Gujarat".
The letter came as a major embarrassment for BJP and Narendra Modi who is pitching for a national role.