Customer Support Numbers

Intel Customer Support Number:
Toll Free: 1800-425-6835 and 1901-425-2105 enter PIN Number
Telephone: 080-28542105
E-mail: apacsupport@mailbox.intel.com

Dell Customer Support Number:

Toll Free: 1800-425-8045
Toll Free: 1800-425-9046
Phone: 080-2510-8033
For Mobile users Local STD code followed by 60003355

Acer Customer Support Number:
1-800-11-6677 (Toll free from BSNL/MTNL landlines) .
1-800-3000-2237 (1-800-3000-ACER, Toll free from Reliance Mobile/Landline. Local call charges applicable for other telecom networks).
011-26383170/75 (Standard call charges apply).

Apple Customer Support Number:
Toll Free: (91) 1800 4250 744
Phone: (91) 80-4140-9000

I am working on this and will update more Customer support numbers.