India's ​Bharat ​Petroleum Corporation will shut ​a 120,000 barrel per day crude unit and some secondary ‌units ⁠at its ⁠Mumbai refinery for maintenance ​in November, an industry source said ​on Monday.The state-run refiner initially planned to shut ​the units ⁠at the ‌200,000-bpd Mumbai refinery ​in ​western India in ⁠April, a company spokesperson said ​in an email response.Earlier, ​an industry source had said that the three to four week maintenance shutdown of units ‌would happen in September-October.Indian refiners have delayed ​their ​refinery ⁠maintenance plans to meet local fuel demand, a government official said previously.