Inclusion Criteria:  All children diagnosed with Autistic Spectrum Disorders by DSM 5 criteria Aged: 2-18 years. Normal hearing (clinically or whenever required by Oto-acoustic emission / automated Brainstem evoked response audiometry) Preferably patients from Delhi-NCR or ready to come for follow up -  Exclusion Criteria:  On standard treatment and care for more than 12 weeks 2. Received in last 12 weeks or currently on any complementary and/or alternate therapy including dietary therapy 3. Associated chronic systemic illness 4. Known allergy to any component of probiotic supplement