For first time travelers to New Delhi, it is better if you take OLA/Uber(especially Auto) or Metro or Bus for travel. Never and I repeat, NEVER rely on private autos or e-rickshaws as they will loot you completely. I remember that after arriving at NDLS, I boarded an auto like a fool and the driver demanded Rs. 100 for a a distance of merely 2-3 mins! Never, even by mistake, board them. It will be better if you take metro as the service of Delhi metro is amazing. Ola and Uber is also a great option.