Pawri पौरी I believe, I have spelt it correctly in Hindi, has following meanings.
It is the railing of a staircase. You get support from a pauri or pawri while climbing a staircase. Sometimes staircase itself is called pauri पौढ़ी.
Pawri is also a vestibule in Hindi. Also called dyodhi.
Now the current meaning of the word, It is Party or jashn or daawat.