Hi Guys,
Thanks for your reply. I have gone through the link shared by Jose and i could see lot of methods mentioned there which may or may not work. But i saw one of the comments to pass the value to a container and then hide the container so that it is not visible to users.
So i worked on top of that and found my Solution.
So what i have done is, First i created a container with id "TempContainer" and then i passed the value of "ticker" to this container
document.getElementById($parameters.tempContainer).innerHTML = ticker;
Then in the Stop Action, i created a variable to hold the value of this container and then i used it for clearinterval function.
temptimerid = document.getElementById($parameters.tempContainer).innerHTML
clearInterval(temptimerid);
This solved my issue.
Thanks Guys for suggestions.