Reliance Retail has started instant grocery delivery service through a new platform and app under the JioMart Express brand, with trials currently ongoing in Navi Mumbai. The company plans to expand the service by this calendar year end to more than 200 cities and towns where JioMart is currently operations, two industry executive said.&nbsp;

Reliance Retail has started instant grocery delivery service through a new platform and app under the JioMart Express brand.