hi rohitvadera,

as per ejb 1.1/2.0 specifications:

1. create()

- this method must be declared in your home interface that
extends the EJBHome interface
- return value must be your EJB remote object

2. ejbCreate()

- this method must be declared in your bean class that
implements either SessionBean and EntityBean, depends
on what type of EJB you have.
- each create() in your home must have a
corresponding ejbCreate() in your bean class -
with same number of signatures or arguments

Explanation:
You cannot find the create() and ejbCreate() because
they are not part of any interfaces that you mentioned. But
they are part of the specification. The specification says
that these methods must appear in your home and bean class
because the (a) EJB Container calls them when they
are instantiated and pooled and (b) the Client calls them
explicitly through the home.create() method in order to
acquire an instance of your EJB.

3. remove() & ejbRemove()

- this method (both defined in EJBHome and EJBObject) is
called by the Container (or can be explicitly called by the
client) to remove an entity or session. if you intend to remove
your EJB explicitly and programmatically, you declare one
in your remote interface.
- calling the remove() method through your remote object will
trigger the container to execute the corresponding
ejbRemove() in your bean class so you make sure that you
have some cleanup codes in this method to release all
the resources that you used during the lifetime of your bean.

i hope this helps.