Autism Spectrum Disorders (ASD) is a set of complex neurological disorders that affect individuals in the areas of social interaction and communication. These children commonly exhibit disorders of speech and language development, which is considered to be one of the core deficits. A lot of research has gone into the study of linguistic form, function and use in autistic population in the recent time. One can find very conspicuous delay in the onset of speech that is initially seen as mutism; later few of them gradually tend to develop speech which may/may not be functional. Speech that develops may show abnormalities of voice, prosody, articulation, pronominal reversal, atypical vocabulary development, morphosyntactic and pragmatic errors. Clinical observation of speech characteristics in autistic children revealed errors like staccato speech, monotonous speech, inappropriate questioning [Fay & Schuler, 1980; Baltaxe & Simmon (1985)]. Apart from these errors the most commonly and generally seen error is echolalia, which refers to repetition of heard speech.