To Override the base.stage method in project module and Parameter of the stage search taken from the lead and also section_id if set, stages must belong to this section or be a default stage; if not set, stages must be default stages in project module in openerp. use this given code in .py file in openerp.

def stagefind(self, cr, uid, cases, section_id, domain=[], order='sequence', context=None):

        if isinstance(cases, (int, long)):
            cases = self.browse(cr, uid, cases, context=context)
        # collect all section_ids
        section_ids = []
        if section_id:
            section_ids.append(section_id)
        for task in cases:
            if task.project_id:
                section_ids.append(task.project_id.id)
        search_domain = []
        if section_ids:
            search_domain = [('|')] * (len(section_ids)-1)
            for section_id in section_ids:
                search_domain.append(('project_ids', '=', section_id))
        search_domain += list(domain)
        # perform search, return the first found
        stage_ids = self.pool.get('project.task.type').search(cr, uid, search_domain, order=order, context=context)
        if stage_ids:
            return stage_ids[0]
        return False