Why is Jammu railway station called Jammu Tawi ?

Jammu-Sialkot Railway Line - Pre Independence Times Before Partition , Dera Baba Nanak was a very important , Highway / Railway line ( with its Railway Cum Road bridge over River Ravi ) linking Delhi /Amritsar / Jullundur routes with another strategic town - Sialkot. From Sialkot the Highway split- to Jammu and via Muzaffarabad ( Jhelum Road to Srinagar . The main highway connecting Jammu and Srinagar ran through Sialkot and Muzzafarabad . 

 

From Sialkot , a narrow gauge train ran ( Via Ranbir Singh Pura ) to Jammu 

 

Old Jammu station ( in a derelict condition ) stills exists on the Right Bank of River Tawi. When , broad gauge railway line was built by India to Jammu , the new Railway station ( on the Left Bank side of the River Tawi ) was named Jammu Tawi . ( Jammu is on the banks of river Tawi )