<span style="color: #222222;">Vice President M Venkaiah Naidu has expressed grief over the passing away of teacher-educator and child care expert Mina Swaminathan. In a tweet, Mr. Naidu said, she was a &nbsp;multifaceted person and made a stellar contribution to the fields of pre-school education, early childhood care, and gender equality. The Vice President expressed condolences to her husband and eminent scientist M S Swaminathan and other family members.&nbsp;</span><br />