The estimated time of delivery is mentioned in the Item Description Page (where you can zoom and see the details of each item). It may differ from one item to another. Here is an explanation of delivery estimates :
Within 3-5 days :
For all key metros (Delhi, Bangalore, Mumbai, Calcultta) & the warehouse the product is being shipped from, the delivery time will be 3-5 business days.
Within 5-7 days :
For all areas serviced by reputed couriers & the warehouse the product is being shipped from, the delivery time will be 5-7 business days.
Within 10-15 days :
For other areas, orders will be sent by Speed Post through the Indian Postal Service which may take 10-15 business days depending on the location.
Business days exclude public holidays, national holidays and sundays.