Hi Ravi,
Make sure you have execute the below commands.
cd C:\SAP\MobileSDK3\KapselSDK\cli
npm install -g
Double check the versions of your softwares.
SMP SDK version should be SP09 PL04 or higher.
Cordova 5.2
Node 0.12.7
For your reference I am attaching my Android SDK manager screenshot.
Regards, Midhun
SAP Technology RIG