NTH HELPDESK NUMBERS [Mon-Fri(Timing 9:45am to 6:15pm)]
- NTH(HQ), Kolkata : 033-23675387
- NTH(ER), Kolkata : 033-23673871
- NTH(NR), Ghaziabad : 0120-2789906/2787795
- NTH(SR), Chennai : 044-22432374
- NTH(NWR), Jaipur : 0141-2332057
- NTH(WR), Mumbai : 022-28352341
- NTH(NER), Guwahati : 0361-2471938