Ones I have been..and..am with                                      Sum do know me very well
Some among these are/were friends, some inspirations,some best advisers,some good company!

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Late Prof.Lalithaguari Ray, my PhD guide from Jadavpur University .....a real gem I lost in April 2016.... she did mean a lot to me in my life ...thank u mam for being there..
bioleaching and waste recycling specialist in India for metals, minerals, WEEE, e-waste, batteries, rare earth