<p>Has anybody used the MS Project Gantt chart control in C#?
If yes, can you share some resources regarding this?</p>

Try these links for a start.
http://www.ilog.com/products/ganttnet/
http://www.netronic.com/products-for-developers/gantt-charts.html?gclid=COLdutasoZUCFQunQwodoWOPkw