Answere: research the topic to gather facts for the essay
Answer: Amicus curiae
Explanation: Amicus curiae is the person who provides case related information, guidance,expertise,interest in that field etc to the court which can help and impact the case in influential manner.
Amicus curiae is not the person that belongs or is part of case rather provides information as external factor working for the court.He/she is also remarked as "friend of the court"
Q. What is the difference between varna and jati as expressions of classical India's caste system? The varna system was older. ... Jatis became the primary cells of social life in India beyond the family or household. Each jati was associated with one of the great classes or with the untouchables.