As per you request below I am providing you the list of service center which is located in Delhi from where you can get the Audio Driver of HCL:

The list includes:

HCL Service Center
353, Gurudwara Rd, Guru Angad Nagar West
078273 61228

HCL Computer Service
Gangotri Apartments Road, Pocket 1, Sector 12, Dwarka
097167 59630

Touch Services
No.156, Near M2K,, Maharaja Agrasen Marg, Mangalam Place, Sector 3
011 2794 2988

Samsung Flagship Service Centre HCL
a 234, Okhla Phase I
089520 18607

HCL Career Development Centre South Extension
E-78, 2nd Floor, South Extension Part - I, Near Bengali Sweets
098181 12118

HCL CDC - Preet Vihar
Vikas Marg, C Block
099717 23865

HCL Career Development Center (HCL CDC- Munirka)
303, Pratap Complex, G-92 Munirka,, नई दिल्ली, DL 110067, India Munirka,
093101 16077

HCL Infosystems Ltd.
3 Park End,3Rd Floor ,Preet Vihar, Near Preet Vihar Metro Station, Vikas Marg, New Rajdhani Enclave
088020 61544

HCL Laptop Service Center
078388 88082

HCL computer shop
1860 180 0425

Automation Network
Community Centre, Vikas Marg
093505 46060

Touch Multi - Brand Services
202, Second Floor, Building No. 78,, Nehru Pl Market Rd
1860 180 3333

BlackBerry Expert Center
G-5, 2nd Floor, Janak Place, Chatrapati Shivaji Marg, Janakpuri District Center
088003 01426

HCL Touch Authorised Service Centre
Captain Vijyant Thapar Marg, Naya Bans
1860 180 3333

HCL Store
R-54,Vikas Marg,Metro Pillar 45,Opp Heera Sweets, Shakarpur
098102 74529

Hcl Infosystems Ltd
Mini Market Ln, S-2a Green Park Extension, Green Park
011 2660 2819

HCL Technologies Ltd.
A 11, Sector 16
0120 438 3000

HCL Infosystems Ltd
E-4,5 & 6, Sector 11
0120 252 0977

HCL Comnet Ltd.
A-37, Behind Mc Donald's
0120 253 5071

Hcl Career Development Centre
B1/5a, Near East Janakpuri Metro Station, Janak Puri
011 4552 8784