The country located at 20 degrees north and 78 degrees east is India.
The coordinates 20 degrees north and 78 degrees east point to India.
That particular point is located in the north-east corner of Greenland. Greenland covers 836,109 square miles.
New Delhi, Delhi, India
20 degrees north and 78 degrees east is a geographical coordinate point located in the northern hemisphere near India. The specific location would be in the country of India, possibly in the northern region near cities like Lucknow or Kanpur.
No point in Pennsylvania is at 78 degrees east longitude.
The exact location of the Taj Mahal is 27.175015 degrees North latitude and 78.042155 degrees E longitude. In terms of DMS, it is located 27 degrees 10' 30.0540" North and 78 degrees 2' 31.7580" East.
There's no city there. That point is in northern India, about 185 miles east of Amritsar.
27° 10′ 27″ N, 78° 2′ 32″ E27.174167, 78.042222
Washington D.C., New York.
Lake Ontario is at 44 degrees north and 78 degrees west.
There is no country at this coordinate: it is just off the west coast of India in the Arabian Sea.