I am giving hotspot to laptop via android mobile but in laptop it is showing there is no any internet connection when I connect via laptop wifi. In my android phone I am using internet with 4g speed.
Did you follow these steps? Have you set a password for your hotspot?
Please click on this link Share a mobile connection by tethering or hotspot on Android
Tether by Wi-Fi hotspot You can share your phone’s mobile data with up to 10 other devices via a Wi-Fi hotspot.
Step 1: Turn on your phone's hotspot Open your phone's Settings app. Tap Network & Internet and then Hotspot & tethering. Tap Wi-Fi hotspot. Turn on Wi-Fi hotspot. To see or change a hotspot setting, such as the name or password, tap it. If needed, first tap Set up Wi-Fi hotspot. Tip: If you don't want your hotspot to require a password, pick None under 'Security'.
Step 2: Connect another device to your phone's hotspot On the other device, open that device's list of Wi-Fi options. Pick your phone's hotspot name. Enter your phone's hotspot password. Click Connect.