Correct Answer: (d) 2, 3 and 4 only
Solution:The Madhya Ganga canal project was built keeping in mind the availability of enough water in Ganga river during rainy season. The 115.54 km. main canal has been merged with upper Ganga canal through the construction of a barrage near Bijnaur district on Ganga river. The project will benefit Ghaziabad, Bulandshahar, Aligarh, Mathura, Hathras and Firozabad districts.