Be talking to kid more. Keep engaged him in telling rhymes songs and while playing say him the names of toys. Allow him to play with children. And better consult doctor if he doesn't respond.

U talk to him, sing song read stories be interactive. You can consult a doctor once

Start reading to him. Ask him more questions in between. If he asks for toy or food. Ask about colour . See if he is responding

Dear uski dite me namkeen chij edd kro aur some babbys r diffrent wo der se bol payega dont worry

Aap chinta na kare. Baby k saath jyada se jyada baat kare. Uske activities me aap sath de uska. Wo baat karne lagega. Agar dhai saal tak bhi wo sirf do teen words hi bolta hai toh speech therapist k paas le jana hoga.