The concern elected Brain Booster Subject for those student only who are going to be promoted for Grade 4 

1. Coding : these programming  essential skill in the future because it is an important part of the digital transformation and also computer programming is a fundamental skill for so many different applications. 
2. Vedic Arithmetic: helps to calculate 10 to 15 times faster than modern mathematics, with almost no usage of calculators.

Note: BBSE_T&C