Sagol Kangjei, an indigenous game of Manipur is similar to the modern day sports of:

polo

The correct answer is Option (4) - polo

Sagol Kangjei, also known as "Polo," is an indigenous game of Manipur. It is similar to the modern-day sport of polo. Polo originated in Manipur and has a long history in the region. It involves players riding on horses and using long-handled mallets to hit a ball into the opponent's goal. Polo has evolved into an internationally recognized sport, but its roots can be traced back to Sagol Kangjei in Manipur.