Several bus depots and railway stations across Uttar Pradesh witnessed chaos on Friday and Saturday night as candidates for a major state government services recruitment examination travelled to their exam centres and back. The UP Subordinate Services Selection Commission's Preliminary Eligibility Test (PET) is a qualifying examination where a score enables a candidate to appear in future recruitment exams for Group C government jobs in the state. More than 35 lakh candidates from across the state had registered for the two-day exams this year that conclude today.