Sainik Welfare Organization India [Swo] — someone else has constructed boundary on my plot no. 1220/322

I am dipawali devi wife of, sanjay kumar singh (Sister of no. 4565396k hav clk manoj kumar). I have registered for plot no-1220, sub plot no. -1220/322, rakba 4. 13 dismil (1880 sq. Feet) at gram-barhu police station - pithoria anchal-kanke, district ranchi, state-jharkhand through the sainik welfare organisation., india, registered ngo 409 block - c. Veer aawas, sector - 18a, dwaraka, new delhi, 110078.
When i reached at the place of my plot i found that it was sold to someone else and someone else's boundary was constructed on my plot.
The boundary is not constructed in accordance with the sketch of plots made.
I am very worried as i have invested all my money in that plot.
Therefore i want to get back my plot or money along with interest as soon as possible.
Registration no. 6326
Registration date 29/10/2013