Arabian Sea:
It isn't only India's land and air borders that need to be secured. Along the international maritime border with Pakistan, the Indian Coast Guard has its hands full.
In 2008, the assailants of the Mumbai terror attacks hijacked Kuber - an Indian boat - that was registered in Porbandar. They then made their way to Mumbai. Since then, the patrols by the Indian coast guard have intensified.
The men constantly roam the waters to look out for anything suspicious. They intercept boats to check the identity and nationality of the fishermen. The checks are carried out by going through the identity cards, which all Indian fishermen are required to carry at all times.
Apart from guarding the coastline, the Coast Guard also play the role of environmental crusaders. They caution fishermen against throwing oil into water, and advise them about endangered species and pollution laws.
"It's in their (fishermen) interest that their vessels should not pollute the water by throwing the dirty oil into the sea which is going to affect aquatic life, especially fisheries, which is their livelihood," said DIG Ratan Bargotra, Commander, Indian Coast Guard, Gujarat.
In the absence of any clear authority to save India's fragile coastline, the Coast Guard is emerging as the only hope.