| All India Station Masters' Association|
R K Unnikrishnan (Central President)
Dhananjaya Chandratre (Secretary General)
Shanmananda Sagar (CSF)
All India Station Masters' Association Wikipedia
The All India Station Masters' Association (AISMA) (Regd. No. NDD/09) is an Indian trade union representing the Station Masters of Indian Railways. Formed in 1953, it is among the best examples of work-category based unions in the Indian railway industry. AISMA represents Assistant Station Masters (ASMs), Station Masters (SMs), Station Managers (SMRs) and Transportation Inspectors (TIs), numbering to 37000.