If the baby is interested in ceiling and fan , that means eye vision is normal. Babies start eye contact and recognising mother by 3 months. After being 9 months in mothers womb, it takes time for baby to adjust to new environment.
Next Steps
Wait till the baby is 3 months, even then if there is no eye contact please do consult doctor.
Health Tips
Try showing high contrast colour objects/ cards to baby from a distance of 10-15 inches.