Yaudheya Tribal republic of Punjab (200 BC - 400 AD.)

Yaudheya or Yaudheya Gana was an ancient tribal confederation who lived in the area between the Indus river and the Ganges river. They find mention in Pāṇini's Ashtadhyayi and Ganapatha .They were in zenith of their power from about 200 BCE to 400 CE.The Yaudheya republic had been a reasonably powerful state since the days of Alexander. (The frontier of their state was actually where Alexander turned back.) In the 3rd and 4th centuries they had a renaissance of sorts, but seem to have disappeared in the middle of the 4th century as the Guptas rose to power to their east.

Nagas of Padmavati GANAPATI NAGA ( C. 200-340 AD )

The Naga dynasty ruled parts of north-central India during the 3rd and the 4th centuries, after the decline of the Kushan Empire and before the rise of the Gupta Empire. Its capital was located at Padmavati, which is identified with modern Pawaya in Madhya Pradesh. Modern historians identify it with the family that is called Bharashiva
The various Kings of the Nagas of Narwar issued coins of 1, 1/2 and 1/4 kakini, from 5-15 mm in size and all issued in bronze. Designs were humped bull facing left, wheel peacock, trident and various other designs. The Nagas of Narwar occupied the region of Padmavati, Kantipuri, Mathura and Vidisha around the period of 200-340 CE. In this period there was substantial trade between India and Rome in spices, fabric and gold. Text used was in the Brahmi script  of an Early Prakrit language.

Sunga Empire (185 BC–75 BC )

The Sunga Empire is a Magadha dynasty that controlled North-central and Eastern India as well as parts of the northwest from around 185 to 75 BCE. It was established after the fall of the Maurya Empire. The capital of the Sungas was Pataliputra .

Sungan coinage issued between 185 to 73 BCE were copper ¼, ½ and 1 silver karshapana. The fractions were first punched then later cast and made of copper.
On the ½ karshapana were usually pictures of a three-arched hill (chaitya) below a crescent and a railed tree to the right. The other side contained an elephant to the left. Average dimensions are 16 mm with a weight of between 2.5 and 3.1 grams.
The ¼ karshapna had an image of an elephant and rider to the left, with the opposite side containing a three arched hill or mountain called a chaitya with crescent ubove. Diammeter is on average 14 mm, and a varied wight of 1.2 and 2.7 grams.
The silver Pana was a punch marked coin and is distinguishable from the type of punch involved, it was a continuation of the Mauriyan coinage.