Khane ke baad meetha khata hoga, gar Surya khana ek mein aata hoga.
He must be eating sweets after meals, if the Sun comes in the 1st house.
The 1st house (Lagan) represents the physical body and personal habits. The Sun (Surya) is the royal planet, representing authority, heat, and the soul.
When the Sun sits in the 1st house, it creates a "royal" personality with very specific dietary habits. Dr. Rishi Rohit Sharma reveals that this person will have an uncontrollable craving for sweets immediately after finishing their meals ("khane ke baad meetha khata hoga").
This is a subconscious way the body tries to balance the intense heat and fiery energy of the Sun in the Ascendant. If you see someone who absolutely must have dessert after dinner, check their 1st house!