Dear Muhammad Zeeshan Khan,

hello and welcome to OSM!

In OSM, we use small letters and capital letters - not capital letters only. A house would be "House" but not "HOUSE". But moreover, we only use the name field for actual names like "Sunshine House" or "Mermaid Hotel", not for numbering like "HOUSE60". House numbers belong on the addr:housenumber field or alternatively some "ref" tag but not in the name.

The same is true for grassland areas; they would not normally be called "PLOTxx". Use the grassland tag only for actual grassland, not for building plots. Building plots are not generally recorded in OSM at all.