Hyderabad Exhibition - 'Numaish' : the only event of its kind in the world to be organised at a stretch for a 46-day period

QUESTION =  Which is the only event of its kind in the world to be organised at a stretch for a 46-day period   ?

ANSWER = Numaish Masnuaat-e-Mulki or Numaish also known as Exhibition is an annual consumer exhibition held in Hyderabad, Telangana, India. The exhibition has remained the only event of its kind in the world to be organised at a stretch for a 46-day period at its 23-acre (93,000 m²) permanent venue in Nampally, Hyderabad. It features joy rides, eateries and other entertainment options for the visitors

Numaish Masnuaat-e-Mulki meaning Exhibition of the Local Products, was started in 1938 by a group of graduates of Osmania University to showcase local products. It was the reign of the Last Nizam of Hyderabad, Mir Osman Ali Khan. From a mere 100 stalls in 1938 started at the Public Gardens, the venue has shifted to the Exhibition Grounds, near Nampally Railway Station. The original name was changed to All India Industrial Exhibition, and was renamed to its original name, the Numaish in 2009.