Kolkata, Oct 26 (PTI) A large number of dead fish were seen floating in the water of Rabindra Sarobar here since Sunday triggering fear about contamination in water among environmentalists. The state agency Kolkata Metropolitan Development Authority (KMDA), custodian of the lake, confirmed the developments and said a team has been sent to the spot. Environmentalist S M Ghosh said "dead fish is everywhere in Lake. Found yesterday and today. Lake water is toxic now." Ghosh said the dissolved oxygen level in Lake water appeared very very poor causing the deaths of at least 25-30 dead fishes. KMDA Chief Executive Officer Antara Acharya told PTI, "we have sent a team of experts after coming to know about the development." To a question, Acharya said there have been indeed instances of dead fish floating in the lake water for past two days and the KMDA will take remedial steps to increase oxygen level in the water including putting in more algae and other watery plants. Acharya said "floating dead fish can be spotted in a waterbody for various factors. We have to find out what happened in Rabindra Sarobar." PTI SUS RG RG