How many workers are members of union and how many non members.
Voting by non unionised members is in order.
How can being or not being a member restrict a worker from voting?
Rights of a worker arise from being a worker and not due to being a union member.
4th November 2018 From India, Pune
Since your query relates to the constitution of electoral college for works committee in which supervisors also likely to be represented, I think that it is essential to verify whether the supervisors going to be the members of the electoral college and contest the election as candidates in the constituency are within the ambit of the definition of the term "workman" as defined u/s 2(s) of the I.D Act,1947.
Then, if you refer to rule 42 of the Central Rules,1957 or corresponding State Rules, you will find that the workmen's representatives are to be elected in two groups i.e unionized and non-unionized. The formation of the electoral constituencies is clearly dealt with in Rule 43.
In short, "yes" is the answer to your query.
5th November 2018 From India, Salem