Team Anna will hold the protest at the same spot and if denied, in jail, Sisodia, who was in the district to drum up support for the July 25 protest, said.
Home Minister P Chidambaram is responsible for the Delhi Police move to refuse permission to hold the indefinite fast, he alleged.
Team Anna had announced the indefinite protest against the UPA government on the issue of corruption and its alleged failure to enact a strong Lokpal as well as not setting up a Special Investigation Team to probe corruption charges against Prime Minister Manmohan Singh and his 14 Cabinet colleagues.
Delhi Police yesterday refused permission to Team Anna to hold an indefinite fast at Jantar Mantar here from July 25, contending that the timing coincides with the Monsoon Session of Parliament when it has to provide space to other outfits.
