1) on the basis of the death certificate, will of the deceased testator application should be made for mutation of house in the name of the beneficiaries under the will
2) it would have been advisable to obtain probate of the will .
3) in madras ( chennai) probate is mandatory .
4) the children can sell the property .
5) if it is not possible for beneficiaries to come to india specific power of attorney ought to be executed in favour of grand son
6) it is mandatory to register POA for sale of immovable properties