monali it maybe a stage which will last a few days . . but do as Ellora suggested as well

Hey Monali it's normal,  give your child the chance to meet new people in a safe and comfortable environment. For example, hold your child when you introduce her to strangers. Your child will also feel more comfortable with a stranger if she's at home.If your child gets very upset with a new person, comfort her and try a different approach – for example, all playing together – or moving your child slightly away from the new person until she calms down. Then you can try again.Take your child’s comfort item (toy or blanket) with you to new situations and when you’re spending time with new people.