Acquisition of land on the basis of the purchase receipt

A plot of land was purchased from a Society 18 years ago with the execution of due Purchase Receipt in the name of the purchaser, the registration of the said plot land purchased has not been done to date.

Is the title maintainable?

What is the limitation period for registration of plot of land purchased from society for personal use?

Can Acquisition of Land be done only on the basis of the Purchase Receipt?