WHY THERE ARE SO MANY ILLEGAL CONSTRUCTIONS UNDER KOLKATA MUNICIPAL CORPORATION ?

"A CID OFFICER IN A DISGUISE OF A FRAUDSTER: 'Sir, I have heard 
that after demonetization of Rs. 500 and Rs. 1000 rupee notes, 
your house was raided by the officials of Income Tax DEPARTMENT; 
it means that you are also a 
corrupted person like me and that 
I-T raid was just a harsh COMPLIMENT. 
Sir, illegally, without any sanction from 
Corporation Office, how to make an illegal CONSTRUCTION ? 
Illegally, without any sanction from Corporation Office, 
how to have a drainage system and water CONNECTION ?' 
A CORRUPTED EXECUTIVE ENGINEER: 'The procedure is very simple; 
if you can bribe me and some of my colleagues 
with a huge amount of CASH; 
then we will throw all those 
legal papers regarding norms and procedures 
of Corporation Office in a TRASH.'  
A CID OFFICER IN A DISGUISE OF A FRAUDSTER: 'Fantastic! 
All your statements have been recorded in the form of a 
video footage in this hidden camera and I have to 
arrest you without any HESITATION;  
now, we are understanding why 
there are so many 
illegal constructions under 
Kolkata Municipal CORPORATION ?'" - Arindam Sain