The BJP on Wednesday retained itshold over the Mira-Bhayandar Municipal Corporation near Mumbai by winning the posts of mayor and deputy mayor.BJP candidate for mayor's post Jyotsana Jasnale defeated her only rival Shiv Sena's Anant Shirke by polling 55 votes against the latter's 36.Hasmukh Gehlot of the BJP became the deputy mayor by defeating Shiv Sena's Marlin D'Sa.Gehlot received 56 votes, while D'Sa polled 35.Four corporators remained absent during the polls in the 95-member house in which the BJP has 62 corporators, Congress 10, Shiv Sena 22 and one Independent.The Sena candidates were backed by the Congress.