Hi Prineel,

Please refer to the below

DocuSign and K2 Integration:
https://community.nintex.com/t5/Technical-Issues/DocuSign-and-K2-Integration/ta-p/123234

Docusign:
https://help.nintex.com/en-US/k2five/icg/5.4/default.htm#Plan/Integration/DocuSign.htm?TocPath=Plan%257CIntegration%257C_____4

https://help.nintex.com/en-US/k2five/userguide/5.4/default.htm#ServiceBrokers/DocuSign/DocuSign.htm?TocPath=Administer%257CK2%2520Management%257CIntegration%257CService%2520Types%257C_____7

Docusign Feature activation:
https://help.nintex.com/en-US/k2five/userguide/5.4/default.htm#K2-Management-Site/Features/DocuSign.htm?TocPath=Administer%257CK2%2520Management%257CFeatures%257C_____1

Should you feel that this post is of use and or an accurate solution to the raised question, I kindly encourage you to mark it as such 
using the 'Best Answer', 'Like' andor ‘Me Too’ options.

Cheers,
Kate

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