In any case, 

رينشهر  hello, I have being mapping for a number of years and been local mapper in Delhi-Gurugram for alteast 3. I partake in organizing monthly OSM Delhi mapping parties. I'm one of India moderator on India community on OSM forum as well on the FWIW.

I was (and) still am very interested in adding footpaths, walking spaces and public places. I have mapped or added hundreds of these parks through local or aerial survey including here in Gurugram. But not all empty green spaces are not publicly accessible parks here due to residential access (or they sometime aren't a park in first place). For this very reason during my arm chair mapping time I had added park notes whenever in doubt. I (and bunch of users) use to do local survey to verify park and details and then close note. These NOTES served a purpose.