1) it is ancestral property

2) property remaining undivided for four generations is ancestral property

3) apply for probate of will

4) notice would be issue to all legal heirs

5) if no objection is received you would get probate in 6 months

6) then apply for mutation of property

7) if registration papers are not available obtain certified copies of sale deed from sub registrar office

8) file an FIR about loss of original documents

9) then your father can with consent of coparceners sell the HUF property

1) in absence of title deeds you would not be able to sell the property

2) any purchaser would insist on original documents of title

3) apply for probate of grandfather will

1. It seems that your father is the karta of HUF. So he can sell the property only with the consent of the other members of HUF.

2. The will is required to be probated only in a select few cities of India. If the will relates to a property in those cities then failure to probate it reduces it to scrap.

3. Apply for probate of will so that rights under the will can crystallise.

he can sell it, if probate is not effected but he has been taking possession over the property since its inception therefore he has accrued right over the property. when a person made a Will but its probation is not effected then that property shall be transferred through inheritance. and your father inherited that property. will is immaterial in your case.

Now my father wants to sell the property. Hence, I would like to know what all processes needs to be done to sell the property and what will the processes totally cost?

If your father wants to sell the property then he may have to dissolve the HUF, by making settlements to all the members including coparceners and he should file a POP before the concerned court to get grant of probate to solve the case

Now there is no certified duplicate copy with Ujjain sub registrar office or with gwalior registrar office as told to us by both the offices. And the original paper was lost long ago.

A paper publication to effect and record objection this may be published in any popular newspaper

After that the desired matter can pursued upon.