Sir, at this stage there are US led coalition forces policing the Indian Ocean areas and a force has also been created to counter terror. But pray, tell us what would policing by Indian Navy in Indian Ocean mean to you. Unless you understand the tasks and implications such statements are mere rhetoric and nothing more.
Blockade of Pakistan would result in immediate nuclear response by Pakistan as it is Pakistan's declared nuclear threshold. Secondly, Ballistic Missiles are being developed which can accurately strike and destroy ocean fearing big naval ships. So blocking Pakistanis ports is a very risky manoeuvre and under the current and future environment, this probably is not possible. And best of all, in future when the Pakistani ports also support Chinese trade, China would take it as an attack and blockade of China and would confront India head-on. Also these ports are needed by Americans. So as I said before, if aunty had balls she would be an uncle - alas she is not.