bids are invited for dept of physics consumables dbt star students diffraction grating , mercury vapour bulb , sodium vapour bulb , bar magnet , fresnels biprism , center tapped step down transformer , silver liquid mercury two kg , paraffine liquid light , copper connecting wire , retort stand burette stand , vinyl coated clamp on swivel bosshead , rechargable valve regulated lead acid battery , dr twenty five germanium diode , magnetometer compass box , ldr , tissue paper , nitrile exam gloves superior quality size medium , nitrile exam gloves superior quality, size large , borosilicate glass beaker graduated five hundred ml , borosilicate glass beaker graduated two fifty ml , micro centrifuge tube two ml polypropylene , test tubewith rim borosilicate autoclavable , spinwintm tube conical bottom fifteen ml sterile pack of five hundred , spinwintmtube conical bottom fifty ml sterile pack of five hundred , urea ar five hundred gm , silver nitrate ar twenty five gm total quantity : 917