Dear Krishnajee
I know it has been over a year since you posted ths question. But if have still not found the answer, here it is. Vaidhnath is in Deogarh, Jharkhand. During the month of Shrawan millions of devotees take Knawar for Jal Abhishek ( 100 KM trek) from Ganga a point where it flows in reverse. And Nageshwar Nath is in Dwarka Gujrat ( 16 KM from Dwarka) if you wish to go there, reach Rajkot ( a central point in the State and take an overnight bus to Dwarka) You will have to lodge in Dwarka for so long you want to stay and use daily transport facility to visit Nageshwar Nath, further 16Km from Nageshwar Nath is Bet Dwarka, believed to be the original city ruled by Lord Krishna,the remains of which lies underwater. The above is as accepted by everywone as the authentic Jyotirlings. hope this information is of some use to you