Rohit, a worker, is dismissed by his employer. No Trade Union and no group of co-workers takes up his…

Section 2(q) itself includes "any dispute or difference between an individual worker and an employer" connected with or arising out of discharge, dismissal, retrenchment or termination. Espousal by a union or a body of workers is therefore not needed for such a dispute. The definition sets no minimum number of workers for this purpose.