Kautilya's Arthashastra 3.11.38

3.11.38

anupaharatāṃ saptarātrād ūrdhvaṃ dvādaśapaṇo daṇḍaḥ, tripakṣād ūrdhvam abhiyogaṃ dadyuḥ //

If in the course of seven nights, witnesses are found to have unanimously made a false consert among themselves, a fine of 12 panas shall be levied. If they are thus found in the course of three fortnights, they shall pay the amount sued for (abhiyogam dadyuh).