1. IF the Layout Plan of the Plot of Land is sanctioned by the Collector office AND IF the Building plans are sanctioned by the Municipal or Town Planning authorities, THEN you can execute the Sale Deed, more so since the OC component is not linked in anyway with the Registration of Agreement.
2. OC is very much required, WHEN building is completed and just before actual possession. It is a prosecutable offence to occupy any building without OC.
3. IF the Layout Plan of the Plot of Land is sanctioned by the Collector office, THEN there won't be any objections regarding the Road or its expansion or other amenities.