Trasnsfer of Property after death of father and mother

Hi, My father died 5 years back and mother died 4 years back. We have a 2400 sft site in my home town in Karnataka. The land which was purchased long ago is still in the Panchayat limits only and is still in my father's name only. We are 3 brothers. We have got the death certificate of both my parents and Legal heir certificate showing all 3 brothers and my mother (taken after father's death). We need to get the title transferred from my father to 3 of us. 1. Do we need to get a new legal heir certificate showing only 3 of us? 2. What all steps are involved and what all authorities (Offices) we need to consult for the transfer and mutation of the said property. Does it involve Sub-Registrar office OR only the municipal corporation 3. Additionally I want to give up my share of the property. What is the legal process involved? 4. Our property is still within the Panchayat limits (All the properties within the village have now been part of the City Corporation). Is there any additional thing involved in bringing it to City Corporation. Regards