Travelling US from Canada with Indian passport

[acestar]

Hey guys,

I am a Indian Citizen currently residing in Canada with Permanent Resident of Canada status. I did apply and receive a US visitor visa 2 yrs back and haven't yet visited the States. I am currently planning to visit New York in few weeks.
So I was wondering do I need anything else to enter the states, my friends said something about applying esta online but was not sure if that's required for my status.

Would appreciate help here,
Thanks

[immihelp]

If you already have a valid visa, you don't need to apply anything. Just enter.