Is buying allotted land legally valid with clear title?

I am planning to buy agricultural land measuring 1 guntha out of a larger parcel of 8 guntha from one of the co-owners who holds a separate registered sale deed; the land falls under the NAINA town planning scheme, and a final plot of 324 sq. m. has been jointly allotted to four owners, one of whom is proposing to sell his proportionate share (12.54%) to me, whether this transaction is legally permissible and will give me a valid and marketable title, whether the sale deed can be executed with the seller as the owner and the other three co-owners as confirming parties, whether CIDCO/NAINA needs to be a party to the agreement, whether both the old plot reference (7/12) and the new NAINA plot allocation details should be mentioned in the deed, and whether NAINA will record my name as an owner in the allotted final plot?