Kiteretsu Daihyakka (キテレツ大百科) (Also known as Kiteretsu Encyclopedia or only Kiteretsu) is a manga series by duo Fujiko Fujio which ran in the children's magazine Kodomo no Hikari from April 1974 to July 1977. The manga was later made into a 331-episode anime television series which ran on Fuji TV from March 27, 1988 to June 9, 1996. As of now, a remastered version of the series airs on Animax in Japan.
An English dub of the anime aired in India on Cartoon Network and Pogo around somewhere in 2015 and 2016, however it no longer airs on both channels and is now extremely hard to find. The only footage of the dub is a low quality recording of it. The voice actors were Indians and they voiced the show in Indian-English.
UPDATE: Another clip was found. In contrast to the previous clip, it was in much higher quality and was uploaded onto YouTube by Christo James (now called "Fujiko Fujio") but got blocked by the current owners of the anime.
2021 UPDATE: Multiple episodes of the dub can be found in this Mega folder, but it has since been removed: https://mega.nz/folder/obIEAb5D#rAZofqNsowDplEDfW2ZMQA
New 2020 Kiteretsu english dubbed
A portion of an episode of the dub
Kiteretsu in english cartoon network - OGZ OnlineGamezWorld
A low quality clip of the dub