I searched many solutions on this site but most of them were referring to Broadcom Wifi drivers while mine has Intel one.
lspci -knn | grep Net -A2
arijit-01:51,Wed Feb 08:~$ lspci -knn | grep Net -A2 05:00.0 Network controller : Intel Corporation Device [8086:24fb] (rev 10) Subsystem: Intel Corporation Device [8086:2110]
arijit-01:54,Wed Feb 08:~$ rfkill list 0: hci0: Bluetooth Soft blocked: yes Hard blocked: no
uname -a; dmesg | grep iwl
arijit-01:55,Wed Feb 08:~$ uname -a; dmesg | grep iwl Linux HP-AU134TX 4.4.0-62-generic #83~14.04.1-Ubuntu SMP Wed Jan 18 18:10:30 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux