I've it already got it confirmed from LM's head office Germany. Write your email and I'll forward to you.
The gear oils have longer life as compare to engine oils.
LM Top Tec 1200 is gear oil. Check their website and the oil specifications.
For your ref.
LM Top Tec 1400 is CVT oil and life is 90K or 3 years.
ZIC, Kixx and other gear oils SCI is 40~50K.
The change interval of Toyota's CVT oils is 50K.
So as an average, 40K is the general CI for gear oil even for mehran.