yes one superfast may be needed between nagpur-vizayawada-thirutati with a link train from karimnagar at peddapalli junction with stops at nagpur, chendrapur, ballarsha, asifabad, bellampalli, mandamarri, mancherial, ramagundam, peddapalli, jammikunta, warangal, khammam, vijayawada, gudur, sreekaalahasti.