जिल्हाधिकाऱ्यांची विकासविषयक कार्ये आहेत
अ. अंधश्रध्दा निर्मूलन
ब. सामुदायिक प्रकल्पांमध्ये वृद्धि
क. रिफ्युजींचे/निर्वासितांचे पुनर्वसन
ड. जनगणना करणे

The correct answer is Option D (Only b, c, d).

Key Points:
• The District Collector performs multifaceted roles encompassing regulatory administration, developmental planning, and welfare implementation.
• Analysis of functions:
• b. Increase and promotion of community development projects (सामुदायिक विकास प्रकल्प) is a core developmental responsibility.
• c. Rehabilitation of refugees and displaced persons falls under district socio-economic welfare and developmental administration.
• d. Conduct and supervision of the decennial Census of India within the district is a statutory administrative duty executed by the Collector as Principal Census Officer.
• a. Eradication of superstition is primarily a social reform agenda and public awareness movement rather than a direct routine administrative/developmental mandate of the District Collector's office.
• Therefore, developmental and statutory administrative functions include b, c, and d (Option 4).
• Key Takeaway: District Collector's developmental and statutory duties include promoting community projects, rehabilitating refugees, and conducting census.