In the 70's and 80's this market had a reputation of selling all " foreign" products (at that time, Indians were devoid of any electronics goods).
Buying anything from Burma bazaar, one should attribute it to one's fate(as in the case of marriage) because one never really know what type of product to which one would become an owner. In other words, authenticity of the product is always questionable and how long will it last ?
If your fate is good you'll become an owner of a "new" product. Otherwise, you'll land up in buying a re-packaged product as a new one. And one could not even share this folly with anyone because your " esteem" would get dented in your circle. Hence,it is better to hide your folly.
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No receipt for any transactions everything is done orally. Meanwhile, the "sellers" would play all dirty "tricks" to "dump" the unsold products on you. There is no scope for taking the errant seller to the court because all products sold in this bazaar are contraband.
If any bitter thing happens at the end of your shopping spree. just curse your fate.