Saudi Arabia’s oil giant Aramco is in “serious discussions” to buy up to 25 percent of the refining and petrochemicals businesses of India’s largest company, Reliance Industries, The Times of India reported on Wednesday, citing people with knowledge of the developments. Aramco first showed interest in Reliance’s downstream business four months ago, but discussions have sped up since Saudi Crown Prince Mohammed bin Salman visited India in February, according to The Times of India. The two sides could reach an…