Partition of mother's land in Cheruvathery, Thrissur

We r three children. Two elder brothers, n i am younger daughter, I am married have two children. Partition had to be done in my mother's land. Land has a banglow and land of 50 cent. I want to know how the sharing has to be done. They are not willing to give me land. Instead they want to give only little amount of money. At present non of them is staying there. Bungalow is locked, they are not allowing me to stay in vacations not even for one day. Now my brother's have called me for partition of land. They were threatened me to sign on some paper, but I refused. Since I don't know the real bagam procedure they can misuse my signature... So pls advice me, what to do... Is there any signed papers we have to submit in panchayat earlier.