Upon intestate death of the property owner, his properties shall devolve on all his legal heirs/successors in interest.
If one of the legal heirs is not willing or cooperating with others for selling the property then the others may file a suit for partition before court for dividing the property as per succession of the personal law and for separate possession of their legitimate share in the property.
After that the other legal heirs can sell their share in the inherited property.
If the reluctant legal heir is not willing for the arrangement and is filing a suit for injunction then the other parties may be restricted to sell their share in the property without court order or proper partition among themselves.
Hence you may arrange for an amicable partition of proeprty instead of insisting on selling of the entire property, once a mutually agreed decision is arrived then you can draw a partition deed, get it registered and sell your share conveniently in favor of the prospective buyer.