Hide Payment gateway based on selected country

index.php

<?php
add_filter( 'woocommerce_available_payment_gateways', 'mcnaveen_payment_gateway_based_on_country' );
  
function mcnaveen_payment_gateway_based_on_country( $available_gateways ) {
    if ( is_admin() ) return $available_gateways;
    if ( WC()->customer->get_billing_country() !== 'IN' ) {
        unset( $available_gateways['wc-razorpay'] );
    } else {
		if ( WC()->customer->get_billing_country() === 'IN' ) {
        unset( $available_gateways['stripe'] );
    } 
}
    return $available_gateways;
}