The buyback committee of Smartlink Network Systems on Friday approved May 18 as the record date for determining the entitlement and the names of the equity shareholders to be eligible to participate in the proposed buyback. On April 7, the board of Smartlink had approved a buyback proposal not exceeding 56 lakh equity shares (being 24.83 per cent of the total paid-up equity share capital of the company) at ₹120 a share for an aggregate amount of ₹67.20 crore. Shares of Smartlink edged up 1.8 per cent at ₹105.90, on the BSE.