The correct answer is: Punjab.
Haryana is a state in northern India. It is bordered by Punjab to the east, Himachal Pradesh to the north, Uttarakhand to the northeast, Uttar Pradesh to the east, Rajasthan to the south, and Delhi to the southwest.
Punjab is a state in northwestern India. It is bordered by Haryana to the east, Himachal Pradesh to the north, Jammu and Kashmir to the northeast, and Pakistan to the west.
Rajasthan is a state in northwestern India. It is bordered by Punjab to the north, Haryana to the northeast, Uttar Pradesh to the east, Madhya Pradesh to the southeast, Gujarat to the south, and Pakistan to the west.
Uttar Pradesh is a state in northern India. It is bordered by Nepal to the north, Uttarakhand to the northeast, Himachal Pradesh to the east, Haryana to the southeast, Rajasthan to the south, Madhya Pradesh to the southwest, and Chhattisgarh to the west.
Himachal Pradesh is a state in northern India. It is bordered by Jammu and Kashmir to the north, Ladakh to the northeast, China to the east, Uttarakhand to the south, Haryana to the southwest, Punjab to the west, and Rajasthan to the northwest.