The three stars chanted "nepotism rocks" in New York during the IIFA awards last week and Johar took a swipe at Kangana who had called him "flag bearer of nepotism" on his chat show.
While Johar and Varun apologised, Saif claimed in an open letter that he had personally said sorry to her.
The debate and exchange of thoughts on nepotism is "exasperating, but is healthy", Kangana responded, also in an open letter.
"Are you implying that artistic skills, hard-work, experience, concentration spans, enthusiasm, eagerness, discipline and love, can be inherited through family genes? If your point was true, I would be a farmer back home."
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While she enjoyed some of the perspectives on this subject, she did find a few of them disturbing, she said.
The actress said any business run by human emotions and not by great value-systems, might gain superficial profits, but cannot be productive enough to tap into the true potential of a nation.
"Nepotism, on many levels, fails the test of objectivity and rationale.
"I have acquired these values from the ones who have found great success and discovered a higher truth, much before me. These values are in the public domain, and no one has a copyright on them," she added, giving examples of greats like Swami Vivekananda, Albert Einstein and William Shakespeare.
"I think the privileged are the least to be blamed in this debate, since they are part of the system, which is set around chain reactions. Change can only be caused by those who want it. It is the prerogative of the dreamer who learns to take his or her due, and not ask for it."
In response to Johar and his comments on the issue, she said talent does exist beyond the "superficiality of branded clothes, polished accents, and a sanitised upbringing".
"I don't know if he was being misinformed, or simply naive, but to discredit the likes of Dilip Kumar, K Asif, Bimal Roy, Satyajit Ray, Guru Dutt, and many more, whose talent and exceptional abilities have formed the spine of our contemporary film business, is absolutely bizarre," Kangana said.
The "Queen" star clarified that she was not fighting with anyone in the industry and her views should not be misconstrued to pit her and Saif against each other.
"The world is not an ideal place, and it might never be. That is why we have the industry of arts. In a way, we are the flag-bearers of hope," she said, adding that people who feel nepotism works for them are free to make peace with it.
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