1.up to date TIN Certificate
2.Valid VAT registration certificate
3.up to date valid trade license
4.similar working experience certificate
5.up to date ABC Electrical licence
And as per TDS
APPSND2.WR-OM-6 Repair, Maintenance and Development work of defected poles and 11 kV,11/.4 kV,0.4 kV Distribution line of 11 kV Sarail Feeder under sales and distribution division-2,BPDB,Brahmanbaria.