National Highways Authority Of India [NHAI] — not accepting 10 rupee coin

Tamilnadu-salem tollways limited-nh544-salem to komarapalayam, vaiguntham plaza toll gate not accepting 10 rupee coins and they dont have reason. Simply rejecting the coins.
Argiving and saying bank not accepting 10 rupee coin and their seniors instructed them to not bring 10 rupee coins.
Central govt controlled highway toll plaza itself not bring 10 rupee coin means where to give this coins.