Option 1 -> Old currency notes were accepted at petrol pumps - This was a correct relaxation.
Option 2 -> Old currency notes were accepted at government hospitals - This was a correct relaxation.
Option 3 -> Exchange limit was Rs 10,000 per person per day - This is INCORRECT as the actual limit was Rs 4,000 (later revised to Rs 4,500).
Option 4 -> Old currency notes were accepted for government dues - This was a correct relaxation.
Hence, Option 3 -> The exchange limit of old currency notes at bank counters was initially set at Rs 4,000 per person per day, which was later revised to Rs 4,500. It was never Rs 10,000 per day. While higher amounts could be deposited into bank accounts, the direct exchange limit remained at Rs 4,000/4,500 throughout the demonetization period -> correct