Hi,
It is as follows:
1) Every union, to function legally, has to be registered under the Trade Unions Act of 1926.
2) In some states (such as Maharashtra), there is a law for the grant of recognition to a desiring union (which must be registered under the Trade Unions Act of 1926 regardless). In Maharashtra, the law is the "Maharashtra Recognition of Trade Unions and Prevention of Unfair Labour Practices Act of 1970 (or is it '72?)". If a union fulfills the conditions stipulated under that act, it may be granted the status of a "Sole Bargaining Agent" for a given establishment.
Recognition and registration are therefore conceptually and fundamentally mutually exclusive. However, recognition may be granted to a majority union by the management. Recognition may also be granted by law to a qualified union, independent of the management's wishes and desires.
In industrial relations and collective bargaining, the question of who to deal with often assumes great significance. In such cases, a recognized union has an edge over a simply registered union. For example, in the same establishment, there may be a multiplicity of "registered trade unions" (which is possible!), but there can only be one recognized trade union.
While registration is a basic matter, recognition is significant from the point of view of the stability of industrial relations and peace in the industry.
At this stage, I hope this distinction serves your purpose. There are other matters connected with the issue of recognition, such as rights and obligations of recognition, etc., but more about that later if needed.
Regards,
Samvedan
January 18, 2007