Delhi Chief Minister Arvind Kejriwal on Saturday said the steep hike in fares will kill the Metro."This steep hike in metro fare will kill Delhi Metro. If people stop using it, then what purpose does it serve," Kejriwal tweeted.The Chief Minister was referring to media reports on Friday that the Metro had lost 3 lakh commuters a day after the fare hike on October 10.On Friday, Delhi Metro Rail Corporation (DMRC), in its defence had said the loss cannot solely be attributed to the fare hike and there were monthly variations noted throughout the year.The Delhi government had opposed the fare hike and locked horns with the DMRC and central government over the matter.