India's Population in 2023 was approximately 142,86,18000 write this in the international system and in Indian System which system used billion?

The population of India in 2023 was approximately 142,86,18,000.

In the International System, digits are grouped in threes from the right.
1,428,618,000
This number is read as One billion, four hundred twenty-eight million, six hundred eighteen thousand.

In the Indian System, the first group from the right has three digits, and subsequent groups have two digits.
1,42,86,18,000
This number is read as One hundred forty-two crore, eighty-six lakh, eighteen thousand.

The term "billion" is used in the International System of Numeration.

The population in:
International System: $\boxed{\text{One billion, four hundred twenty-eight million, six hundred eighteen thousand}}$
Indian System: $\boxed{\text{One hundred forty-two crore, eighty-six lakh, eighteen thousand}}$
The system that uses "billion" is the $\boxed{\text{International System}}$.