Tenders for Custom Bid For Services - Lump Sum Charges For Mechanized House Keeping Services And Reception Cum Front Office And Laundry And Hospitality Services At Transit Accommodation Ongc Nazira And Ongc Sivasagar For A Period Of 3 Years As Per Sow And Scc Custom Bid For Services - Lump Sum Charges For Catering Services At Transit Accommodation Ongc Nazira And Ongc Sivasagar For A Period Of 3 Years As Per Sow And Scc