NEW DELHI: More than 400 e-commerce companies are leveraging the extensive reach of the Department of Posts (DoP) in an effort to deliver their consignments at every nook and corner of the country."The Department has tied up with more than 400 e-commerce agencies, including Flipkart , Amazon, YepMe, Snapdeal and the like for delivering e-commerce pre-paid as well as cash-on-delivery (COD) orders," an internal note of the communications and IT ministry said.DoP has a network of some 1.55 lakh post offices, of which 1.3 lakh are in rural areas.Of all, Amazon is the biggest partner in terms of business with India Posts As per the note, DoP received Rs 1,150 crore from parcels under the COD category, which is expected to cross the Rs 1,500-crore mark by the end of the current fiscal."DoP is delivering 40,000 e-commerce parcels per day and the average value of parcels handled by India Post is Rs 5,000 for urban areas and Rs 3,000 for rural areas," the note said.