If you are planning to visit to the Baba Ramdev Ansan at Ramlila Maidan Delhi, here are the ways using that you can reach at the event place.
By Bus : You can reach there by taking bus from ISBT Kasmiri Gate. Route number 729 has very good service from ISBT
By Metro : You can reach via Metro. The nearest metro station is New Delhi Metro Station.
By Train: The nearest railway station is New Delhi Railway Station.
You can hire local auto and taxis to the Ramlila Maidan Delhi located very near to the Ajmeri Gate.