Capital gains tax on property

An ancestral property originally acquired in 1963 is devided between 6 members of the family in 2016. The property is rebuild and a portion of the property is sold to the developer. Within their share two members receive a Cash of Rs. 650,000.00 each which they propose to use for refurbishing their portion of the property. None of the other members receive cash out of the portion sold to the Developer in consideration of rebuilding. My question is whether any Capital Gain Tax is payable for the amount of Rs. 6.5 lakhs each received by the two members. Further, if Capital Gain Tax is payable, what will be the amount of Capital Gain Tax. Can this tax be avoided by purchasing Capital Gain Bonds for a specified period.