Train was 12811 ltt hte sf. And I changed BP from ltt to KYN of 2nd leg of journey. Chain was UD-LTT ( Matsyagandha) + ltt -hatia (12811 sf). In this case the stations are under cluster station so you ( 1st blogger) can book this ticket with telescopic fare, the only condition being route taken should not be longer by 15% from shortest route. In other words the route should not be greater than shortest route + 15% of shortest route.