Who is Balakrishnan Kuppuswamy!?

During work, Raman and Narayan were chatting:

Raman: Narayan, I've been attending night classes for 5 months now and I have an exam next week.

Narayan: Oh!

Raman: For example, do you know who is Graham Bell?

Narayan: No.

Raman: He's the inventor of the phone in 1876; if you take night courses, you would know this.The next day, the same discussion took place:

Raman: Do you know who Alexander Dumas is?

Narayan: No.

Raman: He's the author of "The 3 Musketeers"; if you take night courses, you would know this.The next day, once again:

Raman: And do you know who Jean Jacques Rousseau is?

Narayan: No.

Raman: He's the author of "Confessions"; if you take night courses, you would know this.
This time, Narayan got irritated and said: And you, do you know who is Balakrishnan Kuppuswamy?

Raman: No!!!

Narayan: He's the guy roaming with your wife!! If you stop taking night courses, only then you would know.

“Rule: There is ‘some thing’ more important in life than Work and General Knowledge.