Himayat Bagh Biodiversity Heritage site is a 17th-century garden that now houses the Fruit Research Station and Nursery, which is a part of the Vasantrao Naik Marathwada Krishi Vidyapeeth.
[1] In Aurangzeb's time, Khizri Talao extended the whole length of the northern wall, (extending from present day Salim Ali Lake till Begumpura / Makbara) but the exhalation and dampness proved unhealthy and Aurangzeb ordered the portion immediately in front of his palace (Kila-e-Ark) to be filled in and converted into fields.
A covered aqueduct passes over one of the buildings and in the olden day's water descended in a shower into an oblong cistern below containing several fountains.
[2] A marvelous feat of engineering that involved an underground water chamber; it created a natural air-conditioning that cooled the entire area when in operation.
The underground drainage pipeline work being carried out by the municipal corporation has damaged the northern historical wall of this beautiful place.