[ad_1] Kapil Dev and Sunil Gavaskar (Image credit: Agencies) MUMBAI: As many as 21 former international captains from nine cricketing nations, including India’s Sunil Gavaskar, Kapil Dev and Dilip Vengsarkar, have written to Pakistan’s Prime Minister Shehbaz Sharif, renewing their appeal for the medical treatment and welfare of Pakistan’s former Prime Minister and 1992 World…