Mumbai, Jan. 26 -- The first night of the newly-launched "Mumbai 24x7" initiative, in which establishments in gated communities and non-residential areas were permitted to stay open past 1.30, saw a lukewarm response. Four malls - Phoenix Marketcity in Kurla; R City Mall in Ghatkopar; Growel's 101 in Kandivli; and Atria Mall in Worli - saw several eateries and shopping outlets open till 4 am on Friday night....