Alpha Test House
M- 577, Guru Har Kishan Nagar, Paschim Vihar
Delhi- 110087, Delhi (India)
National Allergy Centre
No. 1/3, East Patel Nagar, Opposite Metro Piller No. 181
Delhi- 110018, Delhi (India)
Material Testing Laboratory
D 14/7, Okhla Industrial Area, Phase 1
Delhi- 110020, Delhi (India)
Hindustan Instruments Co.
G - 30 J, Panchsheel Garden, Naveen Shahdara
Delhi- 110032, Delhi (India)
Siddhartha Spectro
Plot No. 20, New Mandoli Industrial Area
Delhi- 110093, Delhi (India)
National Testing Laboratory Private Limited
B- 265, Mangolpuri Industrial Area, Phase- 1
Delhi- 110083, Delhi (India)