A. Yes division of land is possible
B. You need to file for "Hissabandi" in the SDM court or Tehsil (what ever applicable) . Once done the mutation record (farad) will mention the total area of the land divided into three for eg if the three brothers have 100 bighas of land 33.33 bigha each will be mentioned on farad, along with the exact portion details .
C This process would take anywhere between 2 to 4 months subject to your uncles do not create any issue.
D. You father should write a will declaring the nominee's for the assets he owns. However as the land revenue docs already have your fathers name, no one can hinder you for your right on the share in land.