The original Nilgiri Railway Company was registered on:

I. 64x² - 64x + 15  = 0     

II. 21y² - 13y + 2  =0

I. 81x - 117√x + 40 = 0

II. 81y - 225√y + 136 = 0

I. 2y²- 37y + 143 = 0

II. 2x²+ 15x – 143 = 0

I. 3x⁶- 19x³+16=0

II. 9y⁴- 27y²+20=0

I. x ² + 5 x  + 6 = 0                 

II. y²+ 7 y  + 12= 0

I. 27x⁶-152x³+125=0

II. 216y⁶ -91y³+8=0

I. 99 x² + 31 x – 110 = 0

II. 6y² - 31y + 35 = 0

I. 2x² - 12x + 16 = 0    

II. 4y² - 8y  - 12 = 0    

I. x² – 13x + 36 = 0

II. 3y² – 29y + 18 = 0

I. x² – 12x + 32 = 0

II. y² + y - 20 = 0