Hello

You can refer to these for English Communicative and Report Writing:

‘Technical Communication : Principles and practice’, Meenakshi Raman and Sangeeta Sharma (Oxford)

‘Communication Skill, Sanjay Kumar and pushlata, OUP2011

“Exercises in spoken English Parts I-III CIEFL, Hyderabad, Oxford University Press

‘Effective Business Communication’, Krizan and merrier (Cengage learning)