By Praveen Paramasivam and Rishika Sadam CHENNAI/HYDERABAD (Reuters) – Rescuers used boats to reach people stranded in their homes amid widespread flooding in the India’s Chennai on Wednesday after cyclone Michaung barrelled into the southern coast, bringing in heavy rain and winds that uprooted trees and damaged roads. An estimated 13 people, most of them in the manufacturing hub of Tamil Nadu, have died in the flooding that was triggered by the torrential rains that preceded the cyclone, which made landfall in Andhra Pradesh state on Tuesday afternoon. Rescuers used inflatable rafts and rope…