Kolkata: The Alipore Zoological Gardens is all set to unveil a separate enclosure for nocturnal animals, as an added attraction during winter. "We are offering this (Nocturnal House) as a new year gift to the people of the state. It will be inaugurated by the last week of December this year," said Asis Kumar Samanta, director of Alipore Zoo. However, the architecture and lighting of the Nocturnal House have been crafted to create a night-like atmosphere during the day. The Alipore Zoological Garden, also known as Alipore Zoo or Calcutta Zoo, is India's oldest zoological park..