She donated 290,000 shares of Facebook stock at "a market value of roughly $31 million" to various charities, according to a Securities and Exchange Commission document.
The shares were technically transferred to the Sheryl Sandberg Philanthropy Fund.
The majority of the $31 million (roughly Rs. 208 crores) donation will go to women's empowerment groups and Lean In, a nonprofit founded by Sandberg to help support women in the workplace, recode.net reported.
She also plans to give money to education groups and anti-poverty efforts.
In December, Zuckerberg and Chan promised that they would give away their money "during our lives" through wealth charitable donations, private investment and promotion of government-policy reform.
Meanwhile, Facebook said in a securities filing Zuckerberg has planned to give away "no more than $1 billion (roughly Rs. 6,738 crores) of Facebook stock each year for the next three years."
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