A sub-divisional magistrate, also known as assistant collector, sub collector, revenue divisional officer, or assistant commissioner, is the administrative head of a sub-division in an Indian district, exercising executive, revenue, and magisterial duties. The specific name depends on the state or union territory. The primary responsibilities include land revenue collection, land revenue administration, disaster management, election, maintaining law and order, overseeing developmental ... SDM Officer : किसी भी जिले में जहां सबसे ज्यादा पावरफुल डीएम (District Magistrate) होता है और उसके पास सारे अधिकारी होते हैं, वहीं डिवीजन ... SDM Full Form is the Sub-Divisional Magistrate Check the full form of the SDM , including functions, responsibilities, salary, etc here on this page.