By Siddhi Nayak, Sarita Chaganti Singh and Nikunj Ohri MUMBAI/NEW DELHI (Reuters) - Indian lenders, including State Bank of India, are reviewing their exposure to Adani Group and examining whether they need to tighten their due diligence when offering new loans to them,

SBI has the largest exposure to the Adani Group among Indian banks, with sanctioned loans of Rs 33,800 crore ($4 billion)

One of Asia’s richest men, controversial Indian tycoon Gautam Adani, is again in the spotlight. His companies’ stocks plunged up to 20% on Thursday after he was indicted by U.S. prosecutors on charges