As you have asked about the IIT training centres in Chennai, I am giving you information about it, I am mentioning some of them, check below for the details

Smart Tuition Centre  
Tutoring Service
Address: Rajaji Street, Appavu Nagar, Saidapet, Chennai, Tamil Nadu 600015
Phone:097103 33376

Reach Academy  
Coaching Center
Address: Pari Rd, Mogappair East, Chennai, Tamil Nadu 600050
Phone:044 6659 9228

Aakash Institute  
Coaching Center
Address: 2nd Floor, Building No. 10, 1st Avenue, Ashok Nagar, Chennai, Tamil Nadu 600083
Phone:044 3945 4545

Bansal Classes Annanagar  
Computer Training School
Address: T.R.R Complex, Door #47, F Block,, 2nd Floor, 1st Main Road, Annanagar East, Tamil Nadu 600102
Phone:095511 44044

Emphasis IIT JEE Academy  
Coaching Center
Address: # 37/112 Gollavar Agraharam Road, Sanjeevaraya Pooram, Old Washermenpet, Chennai, Tamil Nadu 600021
Phone:086809 92557

IITBUDS  
Learning Center
Address: no 647 78, 47th St, KK Nagar, Chennai, Tamil Nadu 600078
Phone:099949 99949

FIITJEE  
Coaching Center
Address: 175, Poonamallee High Road, Opp Ega Theatre, Kilpauk, Chennai, Tamil Nadu 600010
Phone:044 4285 9701

Aakash Institute  
Coaching Center
Address: K.R.Building No.-12, 3rd Floor, L.B. Road, Adyar Circle, Adyar, Chennai, Tamil Nadu 600020
Phone:044 3945 4545