**The Main Basis of Social Organization in India During the Early Medieval Period was Caste**

During the early medieval period in India, the main basis of social organization was the caste system. The caste system is a hierarchical social structure that divides people into different social groups based on their occupation and birth. It originated in ancient India and continued to shape society during the medieval period.

**Explanation:**

**1. Definition of Caste:**
The caste system is a complex social structure that categorizes individuals into different groups based on their birth and occupation. Each caste has its own set of rules, duties, and privileges. The system is hierarchical, with higher castes enjoying more privileges and social status than lower castes.

**2. Origin of Caste System:**
The caste system has its roots in ancient Indian society. It is believed to have evolved from the varna system mentioned in ancient Hindu scriptures, such as the Rigveda. The varna system divided society into four main groups, known as varnas, based on their occupation. Over time, these varnas became rigid social divisions and gave rise to the caste system.

**3. Characteristics of the Caste System:**
- Hereditary: Castes are determined by birth, and individuals inherit their caste from their parents. It is almost impossible to change one's caste during their lifetime.
- Occupation-based: Each caste is associated with specific occupations and trades. For example, Brahmins were traditionally priests and scholars, while Kshatriyas were warriors and rulers.
- Social Hierarchy: The caste system is hierarchical, with higher castes enjoying greater social status, privileges, and power than lower castes.
- Endogamy: Individuals are expected to marry within their own caste. Inter-caste marriages were traditionally frowned upon and are still considered taboo in many communities.
- Ritual Purity: Each caste has its own set of rituals and rules, and adherence to these rituals is believed to ensure purity. Certain castes are considered "pure" and are higher in the social hierarchy, while others are considered "impure" and occupy lower positions.

**4. Influence on Social Organization:**
During the early medieval period, the caste system played a crucial role in shaping social organization in India. Society was divided into numerous castes, each with its own rights, privileges, and duties. Caste determined a person's occupation, social status, and even their social interactions, including marriage. It also influenced access to resources, education, and political power.

**Conclusion:**
In conclusion, during the early medieval period in India, the caste system was the main basis of social organization. It determined a person's occupation, social status, and privileges. The caste system was deeply ingrained in Indian society and influenced various aspects of life during that time.