My baby boy is 16 month old but he is not speaking anything except maa.I am a working lady and hence unable to spend much time with him. Kindly, suggest me what to do to increase his vocabulary?

Don't worry...its natural for babies to take their own time to reach various milestones and it's the same with speaking. At 16 months it's not too late. U can try the following tips: 1. Talk to your baby as much as you can. Talk about everything as you go about your day. 2. Each time your baby makes a sound make sure to respond and answer and pay attention. It's ur baby's of speaking and the more you encourage the more it will make your baby try to speak. 3. Point out objects and name them out loud. For instance, if there's a bird, point it out to your baby and say bird. Repeat it many times. 4. Get board books with big images and do the same. Give it time and keep talking.. soon ul see the difference :)