OSPF (Ping Related issue)

I have Configured the toplogy in that I am having Area 1, Area 0 and Area 2. When I am trying to Ping from Router 6(Area 2) to Router7 (Area 1). Why I am not able to ping ?

Hi Satyam,
Please share the topology…

@SatyamSingh0096
what subnet are you using in AREA1 AND 7??

Router 1
enable
conf t
hostname R1

int fa0/0
ip add 192.168.88.1 255.255.255.0
no shut
ip ospf 50 area 0

int fa0/1
ip add 192.168.13.1 255.255.255.0
no shut
ip ospf 50 area 0

int fa1/0
ip add 192.168.12.1 255.255.255.0
no shut
ip ospf 50 area 0

int range fa0/0-1, fa1/0
ip ospf 50 area 0

Router 2
enable
conf t
hostname R2

int fa0/0
ip add 192.168.12.2 255.255.255.0
no shut
ip ospf 50 area 0

int fa1/0
ip add 192.168.24.2 255.255.255.0
no shut

int range fa0/0-1
ip ospf 50 area 0

Router 3
enable
conf t
hostname R3

int fa0/0
ip add 192.168.13.3 255.255.255.0
no shut
ip ospf 50 area 0

int fa0/1
ip add 192.168.34.3 255.255.255.0
no shut
ip ospf 50 area 0

int range fa0/0-1
ip ospf 50 area 0

Router 4
enable
conf t
hostname R4

int fa0/0
ip add 192.168.24.4 255.255.255.0
no shut
ip ospf 50 area 0

int fa0/1
ip add 192.168.34.4 255.255.255.0
no shut
ip ospf 50 area 0

int fa1/0
ip add 192.168.45.4 255.255.255.0
no shut
ip ospf 50 area 2

Router 5
enable
conf t
hostname R5

int fa0/0
ip add 192.168.45.5 255.255.255.0
no shut
ip ospf 50 area 2

Router 6
enable
conf t
hostname R6

int fa0/0
ip add 192.168.45.6 255.255.255.0
no shut
ip ospf 50 area 2

Router 7
enable
conf t
hostname R7

int fa0/0
ip add 192.168.27.7 255.255.255.0
no shut
ip ospf 50 area 1

Router 8
enable
conf t
hostname R8

int fa0/0
ip add 192.168.27.8 255.255.255.0
no shut
ip ospf 50 area 1

Router 9
enable
conf t
hostname R9

int fa0/0
ip add 192.168.27.9 255.255.255.0
no shut
ip ospf 50 area 1

Router 88
enable
conf t
hostname R88

int fa0/0
ip add 192.168.27.88 255.255.255.0
no shut
ip ospf 50 area 1

int fa0/1
ip add 192.168.88.88 255.255.255.0
no shut
ip ospf 50 area 0

this is total config