Hi Shikha, To built your Instagram profile first you have to be active member on Instagram. Upload stories and add daily post. Make sure that your Instagram engagement will be good. Like and comment on others post so they will do same for you.
Atleast 3..4 post per week aith great photos and content will help you the good engagememt with people. Also you hashtag which is are useful for your post and some stories will put you on benchmark.
To have an attractive Instagram profile, it all starts with a good Instagram bio. Something fun, because she makes a good first impression on you on Insta. I made more than 400 biography and left it as an example on my website: https://gr3web.com.br/biografia-para-instagram