Which of the following pair of cities can be called as a true Industrial cities during Colonial India?

Kanpur and Jamshedpur Kolkata and Bombay Kanpur and Bombay Jamshedpur and Kolkata

Kanpur and Jamshedpur

Kanpur and Jamshedpur were only 2 industrial cities in Colonial India in a proper sense. Kanpur, specialising in leather, woollen and cotton textiles, and Jamshedpur, specialising in steel.