A couple of comments:

• I would avoid using a relative path in your @INC. That seems rather fragile. Actually, avoid using relative paths in general.
• Insted of unshifting onto @INC, use lib, it does exactly that.
• Generally, we name our module files with a .pm extension, but our package/class names don't include the .pm, so you'll need to address that when you call new on the package name

Given those suggestions, try this:

# assume this is hard coded
my $package = 'raja.pm';

use lib qw ( /full/path/to/XX/DC );

# get the package name without the .pm
my ( $class ) = split /\./, $package;

# require by package name
require $package;

# call new on the class (raja)
my $obj = $class->new();
print $obj;
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