Rules can't be changed arbitrarily

Companies, individuals will invest in a country if they can be certain of the legal framework

Since entering the country in the mid-1990s, Cairn has invested tens of billions of dollars in India. Working with local communities and regional and state authorities, Cairn helped build one of India’s leading companies — one that now accounts for more than a quarter of the country’s domestic oil production.

This growth was achieved through a process of collaboration. The Cairn development and production story, alongside partners ONGC, involved pioneering innovative feats of engineering such as the world’s longest heated and insulted pipeline. Sixteen thousand people were employed at the peak of construction of the facilities in Rajasthan 

By early 2006, Cairn