A First Officer also called co pilot is a trained commercial pilot who works alongside the captain operating the plane managing navigation communication safety checks and assisting in all flight operations.
If you join as a fresh First Officer (or Junior First Officer) in India your monthly pay typically starts in the range of INR1.5 lakh to INE3.5 lakh depending on the airline aircraft type and benefits.
For many domestic airlines the starting salary range is often quoted as INR1.5 lakh to INR3.5 lakh/month.
In some cases especially with low cost carriers or depending on flying hours starting First Officer pay may be slightly lower, near INR1.5-3.5 lakh/month.
The airline makes a big difference: premium or full service airlines often pay more.
Aircraft type and flying hours matter: more complex aircraft or more flight hours can increase pay.
Some packages include allowances benefits flight hour bonuses etc. which affect total take home.
So if you ask What is the starting salary of a First Officer in India, a good estimate is INR1.5-3.5 lakh per month (depending on airline and conditions). As you get more experience and flying hours, pay tends to rise.