Shortest distance from jalor to Yeshwantpur is via ahmedabad(2005 km)
1.Jalor to Ahmedabad--343km
Ahmedabad to Yeshwantpur--1661 km
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total --2005
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2.Whereas via gimb
Jalor to gimb--419km
gimb to Yeshwantpur--1962Km
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tatal--2381km
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For issuing connecting train ticket It would be within the said permissible limits of 15% of shortest distance.
i.e 2005*(15/100)=300km
Maximum permissible limit (jalor-sbc)is 2005+300=2305km
But via gimb the distance is 2381km which is(2381-2305=76km) more than the Maximum permissible limit.
That y were not allowed to book onward journey ticket.