A 3-pole India plug insert is a type of electrical plug designed for use in India and other countries with similar electrical systems. It features three prongs, including two flat prongs and a round grounding prong. The advantages of using a 3-pole India plug insert are:

1. Safety: The third grounding prong provides an important safety feature by grounding the electrical current, reducing the risk of electric shock and protecting electrical devices from damage due to power surges.

2. Compatibility: The 3-pole India plug insert is compatible with the electrical outlets in India, making it easy to connect and disconnect devices.
   

3. Reliability: The sturdy design of the 3-pole India plug insert ensures a reliable connection with the electrical outlet, reducing the risk of electrical fires and other hazards.

4. Versatility: The 3-pole India plug insert is suitable for a wide range of electrical devices, from small appliances to large electronic equipment.

5. Ease of use: The simple design of the 3-pole India plug insert makes it easy to plug and unplug electrical devices, even in hard-to-reach places.

6. Cost-effective: The 3-pole India plug insert is a cost-effective solution for connecting electrical devices, as it is widely available and relatively inexpensive.

Overall, the 3-pole India plug insert provides a safe, reliable, and convenient solution for connecting electrical devices in India and other countries with similar electrical systems.