Thank you so much for the details,

from date means "date of appointment" but still I am not getting exactly what date be filled in "To date" Should I fill 31 of Dec, 2015? Because in NOC form (Annex E) there is an option that says "5. The total period of continuous Government service since _____________________rendered by him/ her
on 31.12.2015 will be ______Year(s) ______ Month(s) ______Day(s)."