HOW CAN I CURVED EXTRUDED CUT AS PER ATTACHED FILE ?

You have three standard reference planes to work with.
Based on the view, drawn the curved profile on the Right (Z, Y) reference plane.

If you felt the need to cut it from the front plane, then you'd have to set it up as a revolved cut. I'd do a simple extrusion instead of a revolve.

My question is what the 3/16 dimension is meant to show - See attached image with green highlight.

Thanks to both of you.
The dimensions 3/16 is mean dimension of gusset under boss.
Attach my first 3D model.
pl see feature manager & give your comments.

Hemant,
Thank looks great, but it is not the same model, or even on the page of projects you showed.

It is hard to dissect a model from only an image of the feature tree, I'll give it a try, but if you upload your model I'm sure you'll get better feedback.

- You've created a number of reference planes for that model. I doubt they are needed. There is no harm in having them, but try to determine what service they provide.

- The general order of features looks pretty good, but there may be room for improvement. For simple parts like this, I try to follow this methodology:
* First make extrusions to add material
* Now make cuts to remove material
* Fillets and chamfers at the end
Your tree mostly follows this path, but you'll see some spots where adding material comes after making cuts.

Attached is an example without reference planes.

Don't worry about the number of features in the tree, just focus on if the feature is really needed or not.
Some people try to "optimize" a model to be made in the fewest possible steps... It can be an interesting exercise, but there is rarely a benefit.