I know, there are a number of other articles on how China will defend its shipping routes India doesn't even control the Malacca Strait that many Indians think they can just shut down.
What I wanted to highlight, which the article wants to make clear, is that India doesn't have the naval capacity or capabilities nor the economic or political clout to interdict Chinese bound or origin vessels especially those with foreign flags let alone fight a full fledged maritime trade war with China where an interdiction can be prevented by a small number of marines on Chinese ships.
It doesn't matter whether we're talking about peacetime or wartime.
My personal view is that the author, an Indian Rear Admiral himself, has totally overestimated India's capabilities which is severely outgunned by the PLAN whose ships are largely newer featuring updated designs and technologies:
In the case of the Western Pacific the very head of PACOM, Adm. Philip Davidson, himself confirmed to the US Senate Arms Committe when he was still a nominee that China has total control over the South China sea:
Pacom Nominee: China Military Islands Now Control South China Sea
Where do you think the South China sea lies?
Furthermore it's not just the Western Pacific that will be shut down to India if India attempts to shut down the Malacca Strait I can see Pakistan and China shut down the Strait of Hormuz and Gulf of Aden preventing any oil shipments to India.
The little "advantage" you think you have China is depleting the significance of with a host of alternate shipping routes like the Thailand Canal, Gwadar port and access through the KKH, Polar Silk Road, etc...
The Pentagon's new annual report for 2020 itself confirms the Chinese are building logistics facilities for the PLAN across the region including Thailand and Pakistan to combat threats:
https://media.defense.gov/2020/Sep/...020-DOD-CHINA-MILITARY-POWER-REPORT-FINAL.PDF
As I said earlier, India's entire strategy seems to be centered on this idea of an imaginary QUAD forming when the other 3 members of the QUAD, particularly Japan and Australia, don't have any interest at all going to war with China especially not to defend India.
Indians are deluding themselves into thinking that others are going to come to their rescue like the the the USSR did in 1971 and the US did in 1962, 1965, 1999.