Asiya Andrabi, chief of women separatist outfit the 'Dukhtaran-e-Milat (Daughters of Faith), was on Wednesday booked for unlawful activities by police here.
"An FIR has been lodged under section 13 of the unlawful activities act against the state."
Police said Andrabi has not been arrested so far.
On Tuesday, she appeared in a video by some media organization wherein she said Jammu and Kashmir had never been a part of India and people were fighting a freedom struggle against India in Kashmir.
The radical separatist group has been in news for an aggressive campaign against obscenity, vulgarity and other social evils.
The group campaigned against beauty parlours and obscene posters depicting women in bad light in the early 1990s in Kashmir.
