What is the line around India for?

[sumo0]

I was having a look at the trade zones mapmode and noticed a line around india i haven't noticed before.

http://imgur.com/0VeqeGQ

What is it there for?

 

[Alcadizzar19]

Trade route by sea.

 

[sumo0]

But i can't make a trade route?

How do i use it for something profitable? Merchant republic?
It just seems weird that the trade route line would be in india and nowhere else.

 

[SBolshevik]

So that trade doesn't die if there's a war around the Ganges.

EDIT: Only a small number of provinces can make trade posts there.

 

[Zsrai]

But i can't make a trade route?

How do i use it for something profitable? Merchant republic?
It just seems weird that the trade route line would be in india and nowhere else.

It's part of the Silk Road. Are you runnings mods or edits? There are supposed to be more provinces with the Road on them, AND they are supposed to show as yellow.

 

[sumo0]

oh.
I don't have the horse lords LDC.

 

[Aardvark Bellay]

You must be playing on 2.4.5 then, as this was a bug when not owning HL or you are running amod that causes this.
Fixed in 2.5.