Multiple Runner Classes and testng.xml

@CucumberOptions(
    features = "src/test/resources/features",
    glue = {"com.autopractice.stepdefinitions",
            "com.autopractice.hooks"},
    plugin = {
        "pretty",
        "html:target/cucumber-reports/smoke.html",
        "json:target/cucumber-reports/smoke.json"
    },
    tags = "@smoke",
    monochrome = true
)
public class SmokeRunner extends AbstractTestNGCucumberTests {
}

@CucumberOptions(
    features = "src/test/resources/features",
    glue = {"com.autopractice.stepdefinitions",
            "com.autopractice.hooks"},
    plugin = {
        "pretty",
        "html:target/cucumber-reports/regression.html",
        "json:target/cucumber-reports/regression.json"
    },
    tags = "@regression and not @wip",
    monochrome = true
)
public class RegressionRunner extends AbstractTestNGCucumberTests {

    @Override
    @DataProvider(parallel = true)
    public Object[][] scenarios() {
        return super.scenarios();
    }
}

// Run only Banking features
@CucumberOptions(
    features = "src/test/resources/features/banking",
    glue = {"com.autopractice.stepdefinitions",
            "com.autopractice.hooks"},
    plugin = {"pretty",
              "html:target/cucumber-reports/banking.html"},
    monochrome = true
)
public class BankingRunner extends AbstractTestNGCucumberTests {
}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd">

<suite name="BDD Suite" parallel="classes" thread-count="2">

    <test name="Smoke">
        <classes>
            <class name="com.autopractice.runner.SmokeRunner" />
        </classes>
    </test>

    <test name="Regression">
        <classes>
            <class name="com.autopractice.runner.RegressionRunner" />
        </classes>
    </test>

</suite>