Government bonds (G-Secs) dropped on Tuesday on heavy selling pressure from banks and corporates. While, interbank call money rates remained steady as demand from borrowing banks match supplies.The 6.79% 10-year benchmark bond maturing in 2029 weakened to Rs 99.50 from Rs 99.5925, while its yield inched up to 6.85% from 6.84%.The 6.97% government security maturing in 2026 slid to Rs 101.22 from Rs 101.37, while its yield rose to 6.79% from 6.77%.