Thanks Brikwizard for suggestion. Here are report of commands you suggested.
1. "lspci -knn | grep -iA3 net" return following :-
09:00.0 Network controller [0280]: Intel Corporation Device [8086:2725] (rev 1a)
Subsystem: Intel Corporation Device [8086:0020]
Kernel modules: iwlwifi
0a:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader [10ec:525a] (rev 01)
--
0b:00.0 Ethernet controller [0200]: Intel Corporation Intel(R) Ethernet Controller I225-V [8086:15f3] (rev 03)
Subsystem: Lenovo Device [17aa:22d8]
Kernel driver in use: igc
Kernel modules: igc
2. "rfkill list" return following:
0: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: no
Hard blocked: no
3. "nmcli radio wifi" return following:
enabled
4. "ip a" return following:-
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet xxx.0.0.x/x scope host lo
valid_lft forever preferred_lft forever
inet6 ::x/xxx scope host
valid_lft forever preferred_lft forever
2: enp11s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether xx:xx:xx:xx:xx:xx brd xx.xx.xx.xx
inet xx.xx.xx.xx/xx brd xx.xx.xx.xx scope global noprefixroute dynamic enp11s0
valid_lft 3559sec preferred_lft 3559sec
inet6 xx:xx:xx:xx:xx/64 scope link noprefixroute
valid_lft forever preferred_lft forever
3: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether 52:54:00:cd:b7:22 brd ff:ff:ff:ff:ff:ff
inet xx:xx:xx:xx:xx/xx brd xx:xx:xx:xx:xx scope global virbr0
valid_lft forever preferred_lft forever
4: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN group default qlen 1000
link/ether xx:xx:xx:xx:xx:xx brd xx.xx.xx.xx
Please note instead of wifi it is showing bluetooth enable/disable option.
I tried threads available on following link:-
https://forums.centos.org/viewtopic.php?t=74175
But not sure, if I should install network manager for wifi. More clarity on this issue will help.