As you have asked about the HCL Laptops service centre in Chennai, India, I am mentioning some of them, check below for the details

Laptop Service Center in Chennai  
Computer Repair Service
Address: No. 18/4 MYTHIRE RAMANIYAM APARTMENT basement, east cost road, Thiruvanmiyur, Chennai, Tamil Nadu 600041
Phone:075022 28699

Doorstep HCL Laptop Service Centers in Chennai  
Computer Service
Address: No. 9, 3rd Floor, Nathamuni St, Parthasarathy Puram, T Nagar, Chennai, Tamil Nadu 600017
Phone:088070 00685

HCL Career Development Centre  
Computer Training School
Address: 12/27,Muthuranga St,, Muthuranga Mudali St, West Tambaram, Tambaram, Chennai, Tamil Nadu 600045
Phone:098840 29328

LAPTOP SERVICE  
Computer Repair Service
Address: Shop No 2,No 5, Seeyail Amman Kovil Street, Near Rich Street,), Anna Salai, Chennai, Tamil Nadu 600002
Phone:044 4386 4551

Laptop Service  
Computer Repair Service
Address: 63, MK House ,Periyarpathai Road,, Choolaimedu, Chennai, Tamil Nadu 600094
Phone:089390 99442

Laptronics Technologies(IFIXIT™)  
Computer Repair Service
Address: old no-62,new no-37, south west boag road,tnagar,, Chennai, Tamil Nadu 600017
Phone:044 6499 3777

Laptop Service Center in Chennai  
Laptop Store
Address: 314, Chennai Theni Hwy, Chromepet, Chennai, Tamil Nadu 600047
Phone:098417 66666