National Highway 91
| National Highway NH91 in India | |
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| Basic data | |
| Operator: | National Highways Authority of India | 
| Overall length: | 405 km | 
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National Highway 91 ( NH 91 ) is a main highway in the state of Uttar Pradesh in the north of the state of India with a length of 405 kilometers. It begins in Ghaziabad on NH 58 and leads via Aligarh to Kanpur on NH 2 .

