I am reading articles from The Hindu newspaper. Is it ok or I should go to read foreign magazines?

The Hindu was good in the Mughal era when we did not have the internet, you can choose the best in the world, why restrict yourself!

Definitely read from a variety of articles. There are plenty of GMAT-specific websites that can be useful too.

What is the remainder when ( 𝟏𝟐𝟕𝟗𝟕 + 𝟗𝟕𝟗𝟕 ) is divisible by 32

The answer will be 2 as Kartikay already has given. We just need to realize that 9600 and 12800 is divisible by 32, so adding the remaining parts(-3 and 197) we get 194 which on being divided by 32 gives 2. The answer can also be reached by simply adding the remainders of the two numbers when divided by 32 which will be(29+5) = 34 which will ultimately give 2 when again divided by 2.