I don't think Upper India or it's equivalent is going to be restored. Trains like Toofan Express and Upper India, though slow, served smaller town passengers. I personally traveled in SDAH-BSB Express [Upper India used to run upto BSB on some days] and whilst hardly anyone had an end to end reservation, common folks did use the train as a daily commuter sort of. I assume the train would have saw more crowd on days it ran to the national capital. It and the Toofan Express were crawlers, but they were important crawlers, I believe.