Please translate the given English sentence to Hindi
यह बताते हुए कि 1984 में कोलकाता मेट्रो की शुरुआत के बाद और 1999 में दिल्ली मेट्रो आने तक कोई मेट्रो परियोजना नहीं आई।
Citing the fact that after the Kolkata metro came up in 1984, no metro projects came up till the Delhi Metro in 1999, he asks: If the projects were viable and profitable for the private sector, wouldn't other proposals have come up during the period?