Hindware Sanitaryware Collection [Hsil] — Continuously Leaking concealed cistern

Address:

287 Kohat Enclave, Pitam Pura, Delhi 110034

I have installed 12 concealed cisterns in my house. I believed in hindware as a brand so installed hindware in all of my 12 bathrooms in all four floors.
Everyone is now facing the same issue.
The cistern keeps leaking after flushing, the lever doesn't come back to its original position after flushing. Thus the whole tank gets empty. We have given up on the covers of the levers. Now we have to wait each time after flushing to pull the bare lever into place otherwise the whole tank gets empty. Local hindware reps have come and tried to repair but nothing. Buying concealed cistern and that too of hindware has been a bad idea. If anyone can help me rectify this problem and change my view I'll be glad.
Col (Retd) Suresh Chandra Kumar
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