Hi Anbu,
You can access the context node from view controller class ( in do_prepare_output method) and call any of its method.
CALL METHOD typed_context->btstatush->get_i_act_status EXPORTING attribute_path = 'struct.act_status' rv_disabled = 'FALSE' .
But you should figure out why you are getting an error when you enhance the context node before moving the changes to next system.
Regards,
Shobhit