Hi Deepak, Congratulations on passing MS-102 exam.
You should have received certification of your exam on the same day.
If you have not received it, then you can access it from microsoft site here: https://learn.microsoft.com/en-us/users/rameshsubedi-0145/credentials?tab=credentials-tab
And also you can view your certificate on Pearson Vue ( your exam provider site) : https://wsr.pearsonvue.com/testtaker/registration/Dashboard.htm?_gl=&conversationId=916233
And go to exam history and see your results there.
If you are still having issues then you should contact your exam provider ( Pearson Vue) directly :
https://www.pearsonvue.com/us/en/contact-us.html?tab=office-locations