Hi Anjali,
Thanks for sharing the link.
This page refers to a page Volo.Abp.Account.Pro.Public.Web\Pages\Account\Components\ProfileManagementGroup\PersonalInfo\Default.cshtml From where I can get this full page.
The approach provided seems quite complex. Just imagine that I have to do all this rocket science if I have to add a single field in Personal Info Tab. is there some documentation explaining customization of pages?