National Test House

A Trusted Name For Quality Testing

More Than 100 Years Of Service

I.T Helpdesk email - helpdesk@nth.gov.in
I.T Customer care no. - 9412223550 [ ( Mon - Fri ) 09:30 hrs to 17:30 hrs ]

Helpline Numbers

Search by Standard No.

NTH HELPDESK NUMBERS [Mon-Fri(Timing 9:30am to 5:30pm)]

NTH(HQ), Kolkata : 9412223289,033-23675387
NTH(ER), Kolkata : 9412223289,033-23673871
NTH(NR), Ghaziabad : 9412223381,0120-2789906/2787795
NTH(SR), Chennai : 9412223289,044-22432374
NTH(NWR), Jaipur : 9412223386,0141-2332057
NTH(WR), Mumbai : 9412223374,022-28352341
NTH(NER), Guwahati : 9412223452, 0361-2471938

News and Events

Dear Customer, We are happy to introduce NTH Grievance redressal mechanism through Video Conference on demand. For further assistance and details you may please contact us to our email id - helpdesk@nth.gov.in (or) call us on Landline - 120-278 7853 [ ( Mon - Fri ) 09:30 hrs to 17:30 hrs ]

New test facilities are available at your service at NTH(NER) Guwahati Branch - Bolts as per IS 1367(Part 3): 2017 | Nuts as per IS 1367 (Part 6): 2018 | LRPC Strands as per IS 14268: 2022 | LRPC Strands as per IS 6006: 2014 |Packaged Drinking Water as per IS 14543:2016 | Packaged Natural Mineral Water as per IS 13428:2005 | Fertilizer Testing as per FCO 1985 | Chemical Testing of Profile Sheets | Ceramic Tiles as per IS 15677:2016 |Sanitary Napkins as per IS 5405:2019 | Cosmetics & Cosmetics raw materials as per IS 14648:2011 | Concrete Admixture as per IS 9103:1999 | PVC insulated cable as per IS 694:2010 | XLPE insulated cable as per IS 7098(P-1):1988 | Aerial Bunch cable as per IS 14255:1995

Helpdesk email - helpdesk@nth.gov.in

Customer care no. - 9412223550 [ ( Mon - Fri ) 09:30 hrs to 17:30 hrs ]