Hi Amit,
Thank you for your interest in Syncfusion Products.
We have attached a sample to create a 3D Chart using code behind. Please find the sample from the below link and let us know if this helps you.
Sample Link:
http://www.syncfusion.com/downloads/Support/DirectTrac/10415/3DChartDemo-243074913.zip
Please let us know if you need any further assistance.
Regards,
Pauline Bosco