So I tried to read a lot in this time and I found that there is already patched version available of OLA app and I followed steps in below sequence
Whitelist the OLA APK ( unpatched) but not install it ( After white listing, should it show the app in the white list? it does not on my phone)
Get the patched APK to phone( download on the laptop and use blend to copy paste)
Install the patched APK
It runs and ask me to login... and suddenly it craches and says your google play services has stopped
What should I do next? Should I try to patch the app because the whitelisted version may be different from the patched version. ( I think they should same versions and only difference should be patching ? Right? )
Or any thing else I can do? (Looking for 32bit java meanwhile)