1) 1 survey no sold deed (year 2011 ) documents not available anywhere mamalatdar sub register. where should i get or any suggestion ???
How did you get to know that there is a sale deed of the year 2011, if you are knowing the source of the document it will be easy to lay your hand on the document through such source itself.
2) mouth agreement in 1960 to 1965 is this challangeble after 50 years ??
It may been barred by limitation however, you can present before the court that it came to your niotice very recently hence the matter is well within the limitation.
3 ) how many year after a fraud sell deed we can challange the fraud deed ???
Within three years from the transaction or three years from the date of knowledge about it.
4) if no sell deed available in the office anywhere how can we fight without any document how can we proove the POA is fraud or a land sell agreement is fraud ?
You have to detect the documentary evidences from your sources only or else all your efforts will become waste.