Union Minister Piyush Goyal, who is the BJP candidate for the Mumbai North seat, filed his nomination at the Mumbai (suburban) district collector’s office Tuesday afternoon. Goyal said he was confident about not just his victory but also BJP winning at all the 48 seats in Maharashtra. “Whether the Opposition declares any candidate or not, it makes no difference any more. It is not just my constituency that we are winning. There is an easy contest for BJP in all the seats in Maharashtra and there will be a clean sweep. We will work towards the transformation of Mumbai, so that Uttar Mumbai can be transformed into Uttam Mumbai in the coming days,” he said. After visiting the Borivali Ganpati temple, Goyal also held a show of strength with a rally, before reaching the collector’s office around 1 pm. He was accompanied by Lok Sabha Speaker Om Birla, Maharashtra Chief Minister Eknath Shinde, Union Minister and Republican Party of India president Ramdas Athawale, Mumbai BJP president Ashish Shelar and sitting BJP MP from Mumbai North …