I was Checking Some Train Schedule... In It I Saw Slip route ....What Is It Actually??? Here Is Schedule...
40 JUC JALANDHAR CITY 1 17:40 17:45 1742 2 41 BEAS BEAS 1 18:09 18:11 1778 2 42 ASR AMRITSAR JN 1 19:05 Destination 1821 2 Slip Route 43 UMB AMBALA CANT JN 2 Slip Source 15:05 1572 2 44 CDG CHANDIGARH 2 15:45 15:50 1639 2 45 CNDM CHANDI MANDIR 2 16:02 16:04 1648 2 46 KLK KALKA 2 16:35 Destination 1673 2 It may mean- Amritsar to Ambala is same train, change at Ambala for Kalka. So Ambala to Kalka is like a branch line. But it may be mentioned on website of the Indian Rails. Try if you want. All the best!