User.create(:first_name => "vidur", :last_name => "punj").confirm!.skip_confirmation!

user = User.new(:first_name => "blah")
user.skip_confirmation!
user.save

user = User.new(:first_name => "vidur", :last_name => "punj")
  user.skip_confirmation!
  user.save!

Got the solution:
 @user=User.new(:first_name => "vidur", :last_name => "punj")
 @user.skip_confirmation!
 @user.confirm!
 @user.save

User.create!(confirmed_at: Time.now, email: 'test@example.com', ...)

User.create_with(name: "Mr T", company: "Comp X", password: 'rubyrubyruby', password_confirmation: 'rubyrubyruby', confirmed_at: Time.now).find_or_create_by!( email: 'test@example.com')

before_create :my_method

def my_method
 self.skip_confirmation!
end

user = User.new(:first_name => "Gagan")
user.save