My daughter was 20 months old when I noticed her delays...I've started working on her since that day. The pediatrician neurologist said she is at risk to autism. But now...she don't shows any signs of ASD. she is 2 years old now. But she don't understand commands.. language delay is there. I feel she is not learning from her environment.. She imitates and points. She knows colors, animals, vegetables, and shapes . She even knows the animals sounds. She is good at matching and sorting. She is a fast learner too. But she gets blank sometimes, like she doesn't understand what a person is saying. Mummy papa bolti hai.. even main na rahu aas paas toh Mummy bol k he bulati hai mujhe... apart from this she also started to speak 15-20 words.