Central Institute of Sub-tropical Horticulture is located at

Bangalore
Chandigarh
Lucknow
Nagpur

The correct answer is (d) Nagpur.

The Central Institute of Subtropical Horticulture (CISH) is a premier research institute in the field of subtropical horticulture. It is located at Nagpur, Maharashtra, India. The institute was established in 1960 under the aegis of the Indian Council of Agricultural Research (ICAR).

CISH is engaged in research and development in the areas of fruit crops, vegetables, spices, medicinal and aromatic plants, and floriculture. The institute has a strong focus on developing technologies for the production of high-quality horticultural crops. It also provides training and extension services to farmers and other stakeholders in the horticulture sector.

CISH has a well-equipped laboratory and a state-of-the-art greenhouse complex. The institute has a strong faculty and staff with expertise in various areas of horticulture. CISH is also well-connected with other research institutes and universities in India and abroad.

CISH has made significant contributions to the development of the horticulture sector in India. The institute has developed several technologies for the production of high-quality horticultural crops. It has also trained a large number of farmers and other stakeholders in the horticulture sector. CISH has played a key role in the promotion of horticulture in India.

The other options are incorrect because:

(a) Bangalore is the location of the Indian Institute of Science.
(b) Chandigarh is the location of the Punjab Agricultural University.
(c) Lucknow is the location of the Central Institute of Medicinal and Aromatic Plants.