Baby start to say monosyllables like ma, da at 6 -7 months of age.  And Bisyllables like mama, dada, at 9-10 months of age  Baby start to say 2 words at 12-14 months of age  And jargon speech come at 15 -16 months of age.  Baby can speak simple sentences of 2-3 words at 20-24 months of age.  Some babys achieve these at early and some may be delay in achieving that.  No need to worry for that.   Spend more time with ur baby only  Encourage ur baby to speak  Avoid overcrowding of multiple languages at home to speak with baby Better to speak in mother tongue and teach that language to baby first 

It can take time for some children . Each child is different . Cut all digital screen time for the child and keep talking to the child . If no improvement can consider speech therapy

Please get BERA ( hearing examination) done. Consult a speech therapist. Thank you