Overseas investors remained net sellers of Indian equities for the third consecutive day on Friday.Foreign portfolio investors offloaded stocks worth Rs 3,309.8 crore, according to provisional data from the National Stock Exchange.Domestic institutional investors remained net buyers for the fifth day and mopped up equities worth Rs 3,764.9 crore, the NSE data showed.Foreign institutions have been net buyers of Rs 13,893 crore worth o…