Agricultural land in undivided family

Hello, Me and my mother had share in my ancestral property(agricultural) after death of my father. Now these lands are located in different places (around 10), and all family members have their share on papers since my great grandfather. Their are around 15 people having their names on each piece of land. Although all family members have an agreement among themselves and had divided all property with mutual consent and look after their own property ( no documented paper). I am a non resident Indian (Indian citizen) and want to have my actual property under my name. My queries are:- 1)What is the procedure to do this? 2) Should I open a trust to do this? 3) What is the limit of agricultural land one can hold according to ceiling law( I belong to UP) Thanks, Saad Khan