To Potty train your baby, Parents need to start from 8 months onwards. By this time your baby has started to crawl.
The most important thing to notice is change in behaviour. Baby body language changes when he feels pressure, He will stop doing any activity and start applying force to get relieved. Need to keep a watch, whenever baby shows such kind of behaviour take him to potty seat. Babies with mothers with them all the time generally reach this milestone early.
Keep Potty seat open at one open place in the house (could be outside bathroom) so gradually baby himself can reach and can hint you. It will not happen all in one go, be patient for a happy potty trained kid.
Feel good factor – Do not miss to applaud him when he does potty in potty seat.