On November 25, 2016, the Supreme Court agreed to examine the constitutional validity of #demonitisation .
However, the petitions have not been heard till now.

Link of the news report of Nov 2016 :

Demonetisation: SC Decides To Examine Constitutional Validity And Not Just Confine To People's Problems

https://www.livelaw.in/demonetisation-sc-decides-examine-constitutional-validity-not-just-confine-peoples-problems/