After the IPO allotment is done and the IPO shares are credited to your Demat account, you need to wait for the IPO's listing date. Once the scrip/stock is listed by the Exchange then it will reflect on the Upstox app/ Trading portal. 

1. To know the listing date and other important dates of an IPO, click on the IPO you applied for and view relevant dates under ‘Timeline’

2. By clicking on ‘Timeline’ you will see all relevant dates including the ‘Listing’ date 

After the IPO allotment and once the IPO shares are credited to your Demat account, follow the steps in the link below to understand how to check your holdings statement and view the IPO shares.

-how-can-i-check-my-holdings