Language is an inseparable part of human life which consists of a set of sounds and written symbols to express thoughts, ideas, and feelings.Language development is a process that starts early in life by which children begin to understand and express feelings through languages.Language acquisition is a natural process whereby children acquire language by observing and repeating what they hear in their native environment.Within the first few years of life, we humans seem to progress through the following stages of language acquisition: Cooing: Around one or two months of age babies begin to make cooing sounds in addition to crying. This stage lasts till 4-5 months after birth. Cooing is a vowel-like sound, particularly like 'moo.....'. Babies make cooing sounds when they are content and satisfied.Babbling: Between six and ten months, the infant begins to babble. She repeats syllables like 'ma', 'da', 'ki', and 'ne' over and over again so that we can hear sounds like "dadada ...", "kikikikiki...", "mamama....". This is referred to as babbling. One-word utterances: Sometime between ten, and twelve months, often around the first birthday, the infant says the first word. This word may not match the words adults use but it is a word that the child uses consistently to refer to something, action, or quality.Two-word utterances: ?Gradually, between 1.5 to 2.5 years of age, children start combining single words to produce two-word utterances. Thus begin an understanding of syntax.Basic adult sentence structure (present by about age 4 years), with continuing vocabulary acquisition. Vocabulary expands rapidly. It more than triples from 300 words at about 2 years of age to about 1000 words at 3 years of age. Hence, we conclude that the stage when an infant is capable of producing open vowel sounds at the age of 2-3 months is Cooing.