Talking to newspersons here yesterday, BSNL Principal General Manager A Balraj said the colleges were among the 23 institutions which were provided bandwidth connectivity by the BSNL. The Bharat Sanchar Nigam Limited (BSNL) here has signed a Memorandum of Understanding with 13 engineering colleges affiliated to the Anna University, Tiruchirapalli, to make available its infrastructure for engineering students to undergo in-plant training.