[Sapote]

Stupid me; took a long bar and try to remove, due of this action bolt top of bolt head is snapped.

I think you stripped the Torx head, not snapped off. Did you get the socket on the bolt head snug and tight during the work, or kind of loose?

In this case, with rusted bolt, I would use the impact driver with a Torx socket and hammer on the bolt, but make sure the driver is set in the CCW direction correctly:
The hammering action will loosen the bolt threads and it will eventually turn.

 

[Sapote]

I did use air impact even that no bolts loosened.

Use the impact driver with hammer instead.