Over the next few years Hyder expanded his territories to the north. Two key acquisitions were Sira, taken from the Marathas, and the kingdom of Bednore, where as a "casus belli" he agreed to support a claimant to its throne against usurpers. In 1763 he took its capital, Ikkeri, which included a large treasury. He renamed the capital Haidernagar, and began styling himself "Hyder Ali Khan Bahadur", a title that had been bestowed on him by Salabat Jung as reward for his taking of Sira. He moved most of his family to Ikkeri, a natural fortress, in the hopes that it would "serve him for a safe refuge". He assumed the trappings of the ruler of Bednore, began issuing coins, and established a system of weights and measures. He made sure his son Tipu received a quality education, "employing learned tutors" and "appointing a suitable hand of attendants" to see to his upbringing. He cultivated a suspicion of foreigners, specifically refusing to allow the East India Company to have a resident at his court. His security, however, was not assured in Bednore: a bout of illness and a widespread conspiracy against him convinced him that it would not make an ideal capital for his domain, and he returned to Mysore.