no idea about the monsoon times but during the non monsoon times yes !!! it is a rocket indeed ( majorly depends on the locopilot too ) when I travelled around may , reached madgaon with a delay of around 1 hour.... nd reached udupi with jst 10 mins delay !!! giving an avg of almost 70 km/hr between MAO-UD moreover in a single track mountainous section with an ALCO .... so yes it deserves to be called a ROCKET!! And moreover" Karnataka janarige upyoga aguva akayka overnight superfast train"