Last name Purkayastha (Purkayastha 
) , all around the world, is quite a common surname. The surname Purkayastha is habitual in Bangladesh, where it is quite a rare surname, India, where it is a rare surname, and the United Kingdom. Not in comparison with a country's population, it is the most numerous in India, Bangladesh, and the United States. Much less frequently, Purkayastha is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Purkayastha | United Kingdom, Canada, India, Bangladesh, United States |
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surajit kar purkayastha Indian police officer (b. 1957) |
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| kabindra purkayastha Indian politician, IN (b. 1931) |
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prabir purkayastha |
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| c.s. purkayastha (b. 1938) |
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| ashim purkayastha Indian artist, IN (b. 1967) |
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| r.p. purkayastha botanist (b. 1974) |
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| jubilee purkayastha botanist (b. 1976) |
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| debapratim purkayastha Indian academic, academic leader (b. 1976) |
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| kamalakhya dey purkayastha Indian politician, IN (b. 1977) |
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| jubilee purkayastha researcher |
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| prasanta cookar purkayastha Recipient of Vir Chakra, IN |
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| pradipta purkayastha researcher |
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| manashi das purkayastha researcher |
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| jayaditya purkayastha Indian herpetologist, IN |
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| sanjay purkayastha researcher |
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