Gk Trick 2

TRICK - MAHARATNA COMPANIES - "ONGC SBI"**

Oil and Natural Gas Corporation (ONGC)
National Thermal Power Corporation(NTPC)
Gas Authority of India Limited(GAIL)
Coal India Limited (CIL)
Steel Authority of India Limited (SAIL)
Bharat Heavy Electricals Limited(BHEL)
Indian oil corporation(IOC)

TRICK - DIRECT AND INDIRECT TAX

DIRECT TAX:-"wepro co in" 
we - wealth tax 
pro - property tax 
co - corporate tax 
in - income tax

INDIRECT- "EXCUSE ME" 
ex - excise tax 
cu - customs tax
se - service tax
m - market tax / vat
e - entertainment tax