This is due to the caching mechanism of Google Chrome. If you are using Kite web, hit CTRL+SHIFT+R and you should be able to search for ICICIGI and add it to your marketwatch.
On Kite mobile
Go to settings>apps>Kite and click on “Clear Cache”
Login to the app and you should be able to add it to your marketwatch.
How do I sell the stock?
To sell, add the scrip to your marketwatch and then place a sell order. Don’t try to exit it from your holdings.