1. the appellate court must be a party respondent. Check that. A private person can file a WP against the order of lower courts. A private person cannot however file a WP against another private person
2. you may have filed a partition suit claiming your share in the land, but the defendant would be denying the same on the ground that you have no share in the land. Also even if such a partition suit is filed and no stay has been obtained by plaintiff, then nothing stops the defendant from proceeding with construction
3. even if no third party rights have been created, that does not mean that the building will be ordered to be demolished. Only upon the adjudication of rival claims in the partition suit, would the court take the call whether to order demolition or not, provided such a prayer has been made by the plaintiff in his suit.
4. a second application for same cause of action and grievance cannot be filed now. However as you have failed to obtain an injunction against the construction, you can file an application that the builder should not create third party interest in the flats being constructed by him
5. call up kanoon contact number and they will guide you how to attach
6. you can book a paid phone consultation or take contact details of the lawyer of your choice from kanoon and then set up an appointment with that lawyer against consultation fee
7. for paid phone consultation the charges are fixed by kanoon itself. Whereas for private consultation you will have to pay the usual consultation fee of the lawyer, which would obviously differ from lawyer to lawyer