The most basic or fundamental level of an organization, often referring to the general populace as opposed to the elite.

आधारभूत स्तर

English Usage: The grassroot leadership of the campaign was essential for gaining community support.

Hindi Usage: अभियान की आधारभूत नेतृत्व समुदाय का समर्थन प्राप्त करने के लिए आवश्यक था।