Ok, from that ldd command i figured out i was still missing 32 bit libraries of libncurses. Since its ubuntu 19 so it is not possible to install them using apt-get install command directly. Although i installed it manually but yet i was missing them somehow. When i did apt-get install lib32ncurses, i couldn't get the package.
So i fixed it with following commands from a guide i found just now:
sudo dpkg --add-architecture i386
sudo apt-get update
sudo apt-get install libc6:i386 libncurses5:i386 libstdc++6:i386 lib32z1
Thanks for your support. You may close the thread now thanks.