Special Recruitment Drive (SRD) of Telecom Technical Assistant (TTA) From SC, ST and OBC Candidates from external candidates BSNL propose to recruit total 147 Telecom Technical Assistant (TTA) (in the IDA pay scale of Rs. 13600-25420/- (NE-9). The closing date for Online Applications is 10-12-2015. For details candidates may log on towebsite:externalexam.bsnl.co.in.