Thanks, finally I got this working with Apache Directory Studio.
INFO[0008] [AD AUTH] User bind successful: pradeeban
INFO[0008] [TYK ID HANDLER] Creating identity for: {map[] ADProvider pradeeban@ADProvider pradeeban }
Guess I had some issues with OpenLDAP configurations previously.
I am continuing my research, and I will get back to you in another thread if I need any help in another Tyk task. 