On 14 July 2006, India Post has launched its first water proof and tear resistant envelope, developed in partnership with DuPont, right in time for the festival of Raksha Bandhan.
These envelopes would be able to withstand wear and tear of handling and also the adverse weather conditions during this season much better than ordinary envelopes.
The envelopes had been priced at Rs 5 each. DuPont has the capacity to produce two-three lakh envelopes on a daily basis.
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