<span style="vertical-align: sub;">Rajya Sabha Chairman M. Venkaiah Naidu today advised the Parliamentary Affairs Minister and other ministers to respond to the members on the issues raised by them during the Zero Hour or during the Special Mention. </span><br />''<br />''Mr Naidu took serious exception that the issues raised by the members are of serious nature and it requires a reply from the concerned ministry. If not immediately, the reply should reach the members within 30 days. He said, if not the house will decide upon what else could be done.<br />''<br />''<br />