Spice Jet Airlines — SpiceJet denying refund or reschedule

My flight was supposed to depart. From 12:05-14:15. But on 22nd september they sent me a revised departure time that is one hour late from 13:10-15:15. The problem is i had booked a train ticket which departs from ndls at 16:15. The original flight timings gave me 2 hours to reach from airport to railway station but the revised flight timings reduces the time for an hour which makes it impossible for me to catch my train. If this is the thing i have to cancel my i train as well as flight because my whole journey will be of no value. I told them to either refund me excluding the booking charges or rebook for another day. But they are not ready to do either of it. It's totally taking advantage of customers situation. Irresponsible behaviour of the company. Their hiding under the disguise of company's rules and policies which are ultimately very harsh on passengers.