Maharashtra skipper Smriti Mandhana's 84 went in vain as Railways defeated Maharashtra by seven wickets to win the senior women's T20 tournament in Surat on Wednesday. Left-handed batter Mandhana toyed with the Railways attack as she hammered 11 boundaries and three maximums and forged a 74-run stand with opener Shivali Shinde, who chipped in a 30-run knock. For Railways off-spinner …