"So proud of Indian govt's firm stand on bycot of SARC mtg & overwhelming support by member nations (sic)," Tata tweeted.
The tweet by Tata Group Chairman Emeritus received over 3,200 likes and was re-tweeted more than 2,000 times.
Amid heightened tension with Pakistan over Uri terror attack in which 18 jawans were killed, India had announced its decision of pulling out of the Summit late last night citing increased "cross-border" attacks.
Tata Sons went on to charge Wadia's correspondence as "an
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"It is denied that our Special Notice constitutes a personal vendetta against you or that it is vindictive action, as alleged or otherwise. It is denied that anything stated in our Special Notice was intended to or has caused damage to your reputation as a professional or has caused irreparable injury, as alleged or otherwise. It is denied that the Special Notice has been issued with malicious intent, as alleged," it said.
The company hoped the defamation notice was not "an attempt to coerce our directors and officer not to perform their fiduciary obligations to Tata Sons Ltd and its stakeholders, when Tata Sons has decided to and issued the Special Notice."
"The Special Notice would have undoubtedly been brought to your notice at the meeting of the independent directors of Tata Steel held on November 11, 2016. It is therefore indeed curious as to why your letters seem to ignore your knowledge of the contents of the Special Notice tabled at the meeting of the Board of Directors of Tata Steel on November 11, 2016 itself," it wrote.