When it comes under RL quota , chances are difficult to confirm - u should have booked from Rajahmundry as source station and boarding station as BZA . also if it was PRS ticket , u would have approached TTE for possibilities in 3A against vacant berths or upgraded to higher class . but since u tried on E-Ticket , it was also not possible . mistake is on ur side - dont blame railways for all ... when u people feel lazy to book via PRS and pay extra fare for getting general quota , dont blame railways - they are perfect . u dont want to spend money or time in ticket counters and now ended up in paying the same to buses .