Question

Five doab were built at the time of which mughal emperor

Answer 1

*Bist Jullundhur Doab - Satluj and Beas
*Bari Doab - Beas and Ravi
*Rachna Doab - Rabi and Chenab
*Chal/Jech Doab - Chenab and Jhelum
*Sindh Sagar Doab - Jhelum and Indus
These may help..

Answer 2

Doab means "tongue" which is actually used in the Indian subcontinent. It means the tract of land which lie between two convergent rivers.

The Five famous doabs are as follows:

1.Singh Sagar Doab

2.Jech Doab

3.Rechna Doab

4.Bist Doab

5.Bari Doab

All these doabs were build during the time of Mughal Empire when Ali Gohar (1728-1806) also known as Shah Alam II was the king of Mughal.