Rishan is a bright boy with a sharp mind and great intellectual capability.
He has a positive and uplifting time starting in Nov 2022 which would be quite supportive to him in multiple ways and could trigger his speech as well. Meanwhile, you may also like to see professional medical advice and take appropriate measures.
Best Wishes.
Cancer ascendant with the ascendant lord Moon posited in the fifth house in debilitation; North Node (Rahu) posited in the ascendant; Second lord Sun posited in the ninth house conjunct a retrograde and debilitated Mercury; Ashtakavarga score of second house is 34 and that of third house is 35; Saturn major period ongoing and Jupiter sub period starts from Nov 2022.