The SC in its judgement said that negative voting would foster purity and vibrancy in elections.
"If right to vote is statutory right, right to reject candidate is fundamental right of speech and expression under Constitution," added SC.
The court directed the election commission to introduce a button providing for NOTA in the EVMs and also in trhe ballot papers.
It asked the central government to provide all assistance to the election commission in introducing NOTA option in the EVMs and ballot papers.