While expressing grief over the demise of Kalam, who passed away on Monday, Anushka spelt the Missile Man's name incorrectly on micro-blogging site Twitter.
"Very sad to hear about the passing of ABJ Kalam Azad. Loss of an inspiring visionary and a wonderful soul. May his soul RIP," she had posted on Twitter while paying tribute to the former President.
The 27-year-old personality faced the wrath of Twitteraties for the slip-up.
"It was an honest mistake. My intention...My feelings can't be misconstrued. But I know with what intention I was writing," Anushka told reporters at an event here this evening.
The 'NH 10' actress hit back at social media users who lambasted her over the error, dubbing them "cowards".
"I don't want to pay attention to cowards who hide behind computer screens...With fake names. If you want to say things come and say it on my face," Anushka said.