The question asks about the individual who made an observation similar to Newton`s concept of gravitation prior to Newton himself. The correct answer is Brahmagupta.

Option 1: Aryabhata - He was an eminent Indian mathematician and astronomer but his work does not particularly allude to the concept of gravitation.

Option 2: Varahamihira - He, too, was an eminent Indian astronomer, mathematician, and astrologer. While he made many significant contributions to these fields, the concept of gravitation is not known to be amongst them.

Option 3: Buddhagupta - Buddhagupta was an Indian mathematician and astronomer. His contributions have been in astronomy and calculation methods, but not specifically in the field of gravitation.

Option 4: Brahmagupta - He was an Indian mathematician and astronomer who did describe the concept that points towards gravitation. He stated that all things fall to the Earth, which closely mirrors the concept of gravitational pull which states that every object in the universe attracts each other with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centres, thus anticipating Newton. Therefore, option 4 is correct.