There are already lots of questions on StackOverflow regarding this issue.
I have already gone through most of the solutions. In most of the answers, developers are suggesting to add the abiFilters. So, I have added the abiFilters like below
buildTypes {
release {
signingConfig signingConfigs.release
ndk {
abiFilters 'armeabi-v7a', 'arm64-v8a'
}
But the problem persists and I am still looking for the solution.
When I build the app bundle then I can notice that in the release mode libflutter.so file is missing in x86 folder.

But in the debug mode libflutter.so file is present as you can see below

Flutter does not support 32 bit x86. So you will have to remove the x86 support from your app.
More info here: https://docs.flutter.dev/deployment/android#what-are-the-supported-target-architectures