wash the bottles with baby dishwasher liquid go for love lap good one then put bottels inside sterilizer upsidedown ( ulti rakhni h bottels) n bottel's nipples n cover on uper shelf of sterilizer. put 80 ml water in that then start it will automatically turn off once sterilization done. you can sterilize spoons also which you will be using to mix formula also only plastic, glass n silver utensils can be sterilized.

dr browns is the best.

K . plz help me how to use it???

Phillips avent is best ndo purchase with chickoo sterilizer for germ free feeding

Yes u can use bottle,  anti colic bottle are available Avent,  Pigeon, chickoo these are good brands