India's Indira Gandhi Zoo Park's aquarium is set for a makeover, with plans to expand it by March this year with several new features including an enhanced floor area, an underground fish tank with a glass cover and a bigger variety of fish and aquatic plants.

According to a report in The Times of India, the approximate cost for construction of the underground tank is said by the zoo authorities to be around Rs8 lakh ($12,855, €9,514, £7,900), although the team which currently maintains the aquarium estimates that the whole project could cost a minimum of Rs60-80 lakh ($98-129,000, €72-95,000, £60-79,000).

Currently, the aquarium is home to around 40 species of mainly freshwater fish and occupies an area of between 400-450sq ft (37-42sq m) with a fish breeding area on top of it.

The expansion plans envisage this growing to around 1,500-2,000sq ft (139-186sq m), along with the possible introduction of a new amphibious aquarium, a marine aquarium with reefs, plus a library and information kiosks.

The zoo itself is situated in the Kambalakonda Reserve Forest in Visakhapatnam, Andhra Pradesh.