Support Required Tata Zest coolant BS IV

I am planning to flush and change the coolant of my tata zest. A mechanic recommended the Bosch Auto Cool coolant, but i have a few questions.

The box says "concentrated" solution, and a 1:7 ratio. But the manual says 50:50 ratio. What should i do here? Any help is much appreciated.

Also, is this the right coolant or shall i look for something else entirely?