Don't think they will increase the frequency of existing Rajdhani, Duronto, Humsafar express. They will introduce Vande Bharat sleeper in these routes as frequency increase and also add sone new routes. From July 2025 for next 4 yrs 210 rakes of Vande Sleeper need to be introduced as will be supplied by the contract period. At present the total combined AC rakes of three formats is around 100-110 rakes approx.