Bactrian king Antimachus I. Rule of Menander I The next important Indo-Greek king was Menander I who is considered to have been the most successful of the Indo-Greek kings, and who expanded the kingdom to its greatest extent by means of his various conquests. The finds of his coins are the most numerous and occur across the greatest geographical area, more than any of the other Indo-Greek kings. Coins stamped with Menander's likeness can be found as far away as Eastern Punjab over 600 miles distant. Menander seems to have begun a second wave of conquests, and it seems likely that the easternmost conquests were made by him. Thus from 165 BCE until his death in 130 BCE, Menander I ruled Punjab with Sagala as his capital. Menander subsequently made an expedition across northern India to Mathura, where the Yavnarajya inscription was recorded. However, it is not known if this was a contiguous empire, or ruled through key city centers or polis. Soon after, Eucratides I king of the Greco-Bactrian Kingdom began warring with the Indo-Greeks in the north western frontier. According to Apollodorus of Artemita, quoted by Strabo, the Indo-Greek territory for a while included the Indian coastal provinces of Sindh and possibly Gujarat. With archaeological methods, the Indo-Greek territory can however only be confirmed from the Kabul Valley to the eastern Punjab, so Greek presence outside was probably short-lived or non-existent. Some sources also claim that the Indo-Greeks may have reached the Shunga capital Pataliputra in northern India. However, the nature of this expedition is a matter of controversy. The only recorded primary account regarding this campaign was written in the Yuga Purana, however this text was written as a forthcoming prophecy of an impending conflict. It is not known if the expedition was carried out, or if the Yavanas (Indo-Greeks) were successful in this campaign. However the claim that the Yavanas held Pataliputra is not supported by numismatic or historical accounts, and is even contradicted by some inscriptions. King Kharavela of Kalinga, during his forth year reigning, was recorded in the Hathigumpha inscription to have routed a demoralized Indo-Greek army back to Mathura. It is not known which Indo-Greek was leading the army at the time, however it is presumed to be Menander I or perhaps even a later ruler. Then during his twelfth year in power, Kharavela is recorded to have battled the Shunga Empire and