Mirpur, Dec. 26 -- A dogged 71-run stand between Shreyas Iyer and R Ashwin came to India's rescue as the visitors fought back from a hopeless situation to pull off a three-wicket win over Bangladesh in the second Test and clinch the series 2-0 here on Sunday.With India at 74 for seven chasing 145, Bangladesh were on course for their first ever Test win against their formidable neighbours before Iyer....