Answer & Explanation
D) Uttar Pradesh
Uttar Pradesh is the Indian state which share the most borders with 9 different states.
Neighbouring States of Uttar Pradesh –
Uttarakhand and Himachal Pradesh in northwest,
Delhi, Haryana and Rajasthan in west,
Madhya Pradesh in south,
Chhattisgarh in southeast,
Bihar and Jharkhand in east.