West Bengal Surface Transport Corporation — extremely rude conductor

I boarded the blue bus 04e 4600 from silverspring to go to gariahat just few minutes ago andi handed over a 100 rupee note to the conductor who instead of requesting for change ordered me to give change, when i said i don't have he said bus e othen kyano change na thakle, i said tahole amake neme jete hobe porer stoppage, he said hyan tai korun, again i said ektu dekhun, he said hobe na bollam toh, neme jaan! I was astonished to see such rude behaviour of a conductor in a govt. Bus! While getting down i said bus e likhe rakhun, khuchro nahole uthben na, he said aapni namun, gyan dite hobe na! Kolkatake london banate gele aage manosikota thik korun, customer service er training din.