Thanks All, (Malik_imtiaz, sjehsan, aakbar, lord usama)
My point was basically availability of CNG near Sukheki but its a chance, so I'll consider Shikhupra filling which is just 1 km away from Kot Hussain Interchange, Then surely i'll complete my journy,
Yes couple of time i filled CNG from AREEB CNG thokar Niaz baig which is v good in milage and last time when i was go to Sergodha, I maintain my speed to 90kmph n a 6 kg did 172 km, Just 15 km before sergodha its finish..
Yes offcourse 10L fuel will be on Backup..
Thanks All for help