Vodafone — vodafone signal issue

Address:

110003

Though being vodafone customer i am using plan 352 from the past few months. They are giving daily 1gb data and free voice calls for that plan. I can use calls but unable to use data as vodafone signals were very weak to browse though delhi is having 4g. Simply vexed up with vodafone poor signal strength.
I am the customer for the vodafone from the past two years. Before jio they used loot the pockets. But after jio the vodafone network response was very very very very poor in terms of data browsing.