NOTA was implemented after a Supreme Court ruling in 2013 - TrueThis is true.
In September 2013, in the case of People's Union for Civil Liberties v. Union of India, the Supreme Court of India directed the Election Commission to provide the NOTA option on EVMs and ballot papers.
If NOTA votes are in the majority, the election result can be annulled - FalseThis is false.
In the current Indian electoral system, NOTA votes, even if they are in the majority, have no impact on the election results.
The candidate who gets the highest number of votes wins, regardless of how many NOTA votes are cast.
NOTA symbol was introduced in 2015 - TrueThis is true.
Although NOTA was introduced in 2013, the specific symbol for NOTA (a ballot paper with a black cross across it) was designed by the National Institute of Design, Ahmedabad and introduced by the Election Commission in September 2015.