I have checked again with another Xbee Base Module.
Test/Query is ok.
XCTU shows COORDINATOR AT Version - 1020 & ROUTER AT Version - 1220 in Modem Config
Reading Module parameters gives OK result in XCTU.
But, doesn't show Modem Type,Function Set & Version.
Writing any value gives error : Getting modem type....OK
Programming modem...Lost communication with modem
Also, Terminal shows - Echo for any typed char.
Interesting info is that :
For 1st Xbee => LED Blinks 2 times per second (I think its Router)
For 2nd Xbee => LED Blinks 1 time per second (I think its Coordinator)
What can i check for communication in this 2 Xbee ?