<span style="color: #222222;">Prime Minister Narendra Modi extended best wishes to the Central Industrial Security Force (CISF) personnel and their families on their Raising Day today.<br />''<br />''In a tweet, Mr Modi remarked the vital role of CISF in the country's security apparatus and lauded their hard work and professional outlook.<br />''<br />''He also underlined that they provide round the clock security at key locations including critical and strategic infrastructure.</span><br />