I need to ask few more questions before answering your query. Early consultations can prevent complications. Kindly contact me on whatsapp chat  (84960595 six five) Dr Faisal Zoheb MBBS , MD PAEDIATRICS , PGPN (BOSTON), FELLOWSHIP IN NEONATOLOGY ( Newborn and vaccination specialist )

Looks good. If he is able to repeat letters numbers rhymes colours and pictures both in Kannada and English it is great. Looks more like mother and child behaviour problem. But be assured it is only passing time. No need to feel stressed and let the kid enjoy his childhood.

Greetings pattern can point to a language processing delay, a gestalt language processing style, or developmental conditions like Autism Spectrum Disorder.To support his communication, you can consult a speech-language pathologist, visit a developmental pediatrician.You can also practice using clear, descriptive statements rather than direct questions to help reduce his verbal imitation.

Telling letter and nmbrs Rhymes .He is responding with word to u . No need to worry .

Looks good

Urgently take to Developmental Pediatrician it's already delayed

The history suggests delay in functional language and communication rather than only “speech delay.” Repeating words/sentences (echolalia) with difficulty answering questions meaningfully should be evaluated further, especially at 4.5 years of age. Please get a detailed developmental assessment done by a pediatrician/developmental pediatrician along with hearing evaluation. Early speech therapy and behavioral intervention can significantly help language and social communication skills. At home: - Talk interactively with the child during play and daily activities - Ask simple one-step questions and wait for response - Encourage eye contact and two-way conversation - Reduce screen time completely/minimally - Read picture books and encourage naming + answering - Praise any meaningful response attempts Since the child already knows alphabets, numbers, rhymes and colors, learning ability is present, but communication and comprehension need proper assessment and early intervention.