Point your domain at these nameservers and hosting, email and SSL all work without further changes:
ns1.fonhost.comns2.fonhost.com
Both resolve to 51.79.220.195. Set them at your registrar (for a .com.np domain that is usually the reseller or Mercantile panel), then wait for the change to propagate.
If you prefer to keep your current DNS provider, that works too — point an A record for the domain (and www) at 51.79.220.195 and add an MX record of mail.yourdomain.com if you use our email.