How to sell property in the name of grandfather after his death??

Sir, The property I have mentioned in the subject is in the name of my grandfather, who was blessed with 6 kids( 3 daughters, 3 sons). My grandfather expired 27 years ago but due to certain issues the property hasn't been divided among them. Due to this there are continuous quarrels among the six regarding the share of property. Due to this until now there hasn't been a decision and it seems that there will never be a consensus among all 6 and there will never be a decision. I kindly request you to suggest me the actions to be taken in order to get the share belonging to my father. Can I approach the court directly requesting it to divide the entire property into 6 equal parts??? How much time tentatively will it take to sort the things after filing a case in the court of law???? Can the court divide the property without the consent of any of the members(i.e. either one of the brother/sister not being in the favor of dividing the property into 6 equal parts.) Expecting a reply from you as soon as possible.