Maheswaran,

To learn the basics of NMR ---> 2D application

--- A Complete Introduction to Modern NMR Spectroscopy by Roger S. Macomber (Dec 23, 1997)

Also,

---Spectrometric Identification of Organic Compounds by Robert M. Silverstein, Francis X. Webster and David Kiemle (Jan 14, 2005)

covers several answers to 2D problems

Good luck

Thanks a lot

"high resolution NMR techniques in organic chemistry" by Timothy D W Claridge

There is a whole chapter about NOE and a couple of sections specific to NOESY (2D NMR)