Answer: Aryans made the greatest contribution to the development of Indian culture.
Step-by-step explanation:
Their tongue is in use today in major parts of India. Their Vedas are the primary roots of Indian culture. Dr. Jadunath Sarkar has thus described the contribution of the Aryans towards the Indian culture as a feeling of sympathy and adjustment, a wonderful evolution of science and philosophy, fixation of adjustment among different castes through their principle of 'Varna‘ system, and the spread of civilization among the demons and wild tribes through 'Tapovan‘ system.