Dheeraj, there are no great tricks that can be used.
In slush and snow, you will likely lose steerage; not much you can do about it! You might need people outside to help change the car's heading!
You'll have to maintain some momentum; sad part about 2WD cars. If you feel loss of traction and wheel spin, do not try to rev your way through - you'll only bog yourself down deeper.
Try to get out of the situation in reverse, steer the wheels both ways and try, or use rocking motion back & forth to create some space and try to get out.
Water is different. You need to pull over to a side and watch other vehicles cross.
Fix a clear trajectory that you will follow and go through it without let up! If the water is deep, make sure to keep engine revs high so as to preclude water ingress into the exhaust pipe.
You may have to do a recce on foot to select the best path!
Never do
any half clutch manoeuvres anywhere! Surest way to get stranded with a burnt clutch plate!
In all such situations gear change is to be avoided. Choose a low gear before entering and complete the crossing in that gear.