All India Trade Test: Another choice for ITI understudies later the consummation of ITI course is to go for AITT or All India Trade Test. The All India Trade Test is directed by the NCVT (National Council for Vocational Training ). The test is an expertise test that ensures the ITI understudies. Subsequent to passing AITT, understudies are granted National Trade Certificate (NTC) in concerning exchange by NCVT. In many designing exchanges, a NTC is identical to certificate degree.