You can start these feeds after 6 months of age. Till 6 months give your child only breast feeds. Those are best for your child. After 6 months you can start fruits like banana, apple, papaya, boiled carrots, potatoes. You can even start chicken and egg at 7-8 months of age. Please do not give any cow milk or cow milk products till the age of 12 months, as they're harmful to child(CDC guidelines) It's nice that you're asking. You'll be a great parent!

Greetings start complimentary food after 6months "Feeding Patterns and Diet for Childrens 6 Months to 8months" by Dr.Shebin C E - https://www.practo.com/healthfeed/feeding-patterns-and-diet-for-childrens-6-months-to-8months-43979/post

Maam you should start complementary feed at age of 6 months .. start with liquid and semi solid feeds then gradually you can give solid... Soft food.