Raj,
"He does not turn out his full day's work but gets paid too."
"The employees, including officers, refused to attend a review meeting called by their higher authority and also an external agency, quoting reasons of 'Non-cooperation'. They were issued show cause letters for insubordination."
Management has (or should have) the right to set the Standard of Work, both the quality and the quantity, restricted only by a labor agreement negotiated by representatives of the employees. Where such Standard is set and accepted, that is the standard that will be used in a "work to rule" setting. In addition, management has (or should have) the authority to direct the workforce, which means to establish reasonable rules for the efficient, productive, and safe operation of the facility. Violators of these rules, and/or the direction of management are (or should be) subject to discipline "up to and including discharge".
From what I've read in this forum, Labor relations policy and practice is broad and ambiguous in India. The country has very liberal labor laws (due to the culture and history of the country?) that cover almost every aspect of working life, from the time a person becomes an employee to the time s/he leaves, and for all periods in between.
It is this inflexibility, I believe, that led to the recent unpleasantness - the strike at Toyota some months ago. That work stoppage was borne out of worker frustration and management arrogance. The employees had a bona fide issue; management ignored them, so the only recourse was to refuse to work, and when attempts were made by the authorities to protect property chaos erupted. People were hurt, property damaged, and both parties pointed fingers at one another.
Obviously, management cannot condone employee insubordination (the first step on the road to chaos), especially where union leaders instigate and promote such action. On the other hand, employees with legitimate issues affecting the workplace need a forum to express such concerns and, where appropriate, have them addressed with a reasonable and mutually beneficial solution. Where there is open, honest, and frank communication of what is expected and what the effect of non-compliance will be, there is no need for "work to rule" or "non-cooperation", since issues that arise are soon disposed of.
Where "flashpoint" issues arise unexpectedly, Management should attempt to convince the Officials to use their influence to persuade the employees to return to work at the normal pace after which the parties will sit down and discuss the issue that gave rise to the action. If the officials refuse, they usually are charged with gross insubordination and suspended (lose pay) for 1 to 3 days, while employees who engaged in the job action are charged with insubordination, subject to "progressive discipline", with a warning that any breach of the rules or decorum in the future will be met with more severe penalties.
Union Officials are (or should be) held to a higher standard due to their position, level of influence, and the fact that they know, or should know that any unauthorized work stoppage/slowdown has a negative effect on the business, and eventually on the employees themselves.
Have you attempted to determine what was the underlying cause behind the refusal to attend the meeting? Lack of communication? Essential work that could not be delayed? Just a refusal to show their power?
Since I am not familiar with your labor laws, I can only offer some comments and observations, based on my experience here in the States. Maybe there are other members who could provide a responsible course of action.
Regards,
PALADIN