Query about cross suit against each other

I bought a property and due to some disturbance form one family, I have filed an injunction suit against the family to restrain them form the property which was pending before the court and court has given a temporary injunction. Later one of the same family member (daughter) filed a partition suit claiming her share in the property and also in her prayer she has added one prayer to grant permanent injunction against me along with partition prayer without disclosing the facts that there was already an injunction suit filed by me against her and others which was well known to her. Can she file another case with the same prayer to grant permanent injunction when there is already a case pending with the same prayer against her? Only difference is that case filed by me earlier to grant permanent injunction against her and in later case which she has filed is to grant permanent injunction against me along with prayer for partition. What should be my next step. Can I file application under order 7 rule 11 or any other law to reject the case?