Air India — luggage not received

The staff at the check in counter in kolkata are bad misbehaved. They don’t spare 3-4 kg extra over 120 (6persons).
Rude and bad service. No manners and ethics. They don’t know how to talk.
When i arrived at my destination i have not received my baggage.
Pure harresment. Few years back i had lost a bag on this airlines. The compensation is hardly anything. They charge exhorbident for excess baggage and for lost baggage they have little to compensate.
Just praying that i get my baggage.