Bihar's former deputy chief minister and BJP leader Sushil Modi on Wednesday declined to wear a Muslim skull cap offered by a member of the party's ally HAM in the upcoming state polls citing the humid climate.At an election meeting in Tekari assembly constituency in Gaya district, Shakila Bano, a woman leader of former chief minister Jitan Ram Manjhi's Hindustani Awami Morcha (HAM), offered a skull cap to Modi."I offered Modi a skull cap but he politely refused to wear citing humid climate," a party worker close to Bano quoted her as saying."She was upset after Modi refused to accept her offer in front of the people who had gathered for the election rally," the worker added.HAM's candidate Anil Kumar is contesting polls from Tekari.A few years ago, Prime Minister Narendra Modi as the then chief minister of Gujarat had refused to wear a skull cap offered by a Muslim cleric in Ahmedabad.