Question

taj majal sabsey pahleay kaha bana

Answer 1

tak Mahal ek hi aur usse Shahjahan ne Agra Mei banwaya hai

Answer 2

taj mahal was build only once and that also in agra on the bank of river ganga. 
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some people do says that there was also a black taj mahal on the other bank of the river ganga just opposite to the current one, but nobody knows what's the truth.


Hope it helps mark as brainliest!!