Site registered on registered firm can be transffered to individual after some period of time !!!

Hi Sir / Madam, My father was worked in the same firm for more than 40 years at that time the registered firm under missionary/society acts having branched all over the India, head office. where my father working area site (hardly 4 cents or 192 sq. yards ) purchased by collecting funds locally and registered in sub-register office on firm name. since my father living there in the same site for 30 to 35 years, doing his work even after he came out/resigned from that firm. Recently my family members means my mother registered that site on my name (I am the elder son in my family, signed all my siblings also) as a scheduled asset site not assigned land after expire of my father. Here I would like to ask experts is our site area is small, sicne we are living, paying electricty bills on our father name from above mentioned of years. But since we are not paid any panchayt tax for any property. What are the possibilities of legal rights, inherit, possessing according to the laws of AP state or India. Thanks in Advance