hi rahul
i think you are a new seller. welcome dude.
Just calculate the margins, decide a courior company and ask its rates. if it suits you just ask them to send the parcel. if you find the courior rates a bit more than you expected just dont delay and send the parcel asap. you may increase the price in listing for future sales and sloso spend some time to get the courior brand which can offer you good rates.
wish you luck..