Lucknow, April 14 : The famous Naubat Khana or Nakkar Khana, housed in the Bada Imambara Complex, now figures in the list of ASI protected monuments. The Archaeological Survey of India (ASI) has issued a notification giving the structure a protected monument status as that of Bada Imambara and other heritage monuments in the city. Built on the opposite side of the Imambara and part of the heritage complex, this Naubat Khana was constructed to accommodate the drummers, who used to beat their nagadas (drums) to declare the hour of the day and also welcome esteemed guests in the court of the Nawabs. While the Bada Imambara was declared a protected monument by ASI in 1920, the Naubat Khana was still left behind in occupying the same status over a period of decades, resulting in heavy encroachment. Lawyer Mohammad Haider said, "The monument is reeling under extreme encroachments, as a result of neglect and administrative apathy. There are squatters and encroachers who are living inside the said protected monument, and are causing irreparable damage, threatening the very existence of this magnificent edifice. Even the Archaeological Survey of India has opened up its office in the Naubat Khana, a part of the said protected monument, which is a highly regrettable action on the part of the "protectors". A portion of the Naubat Khana has been converted into a public toilet, which is in clear violation of law. The protected monument status will, hopefully, help in restoring the monument. /IANS