withdraw my h1b application (EVC) at Kolkata consulate, Going again for stamping on EC model

[duttajune9]

Hi,

In May 2012 I went for my H1B visa stamping in Kolkata consulate and VO was not willing to give the H1B Visa on the context of EVC - employee employer relationship issue. So I withdraw my application as VO mentioned that USCIS will take atleast 6 months to process/verify my case

Now my H1B is transferred to Direct Vendor and I am planning to go for another interview.

Do my previous employer has to send a H1B withdraw request for my original H1B petition to USCIS before I go for Stamping?

What chances Do I have this time on EC model?

In my case Client is same. I work in client location and its 2 miles away from my new employer.

Also I have relieving letter from my previous employer mentioning that I am no longer working with them.

Thanks