Misc photo seeking info on who, when & where?

Writing on the back of the photo says,

Feb 2000

Mr Mehra

40 year member chairman Mumbai region

I Holme – first lecture FOSDC member in Mumbai

Prof E.H Daruwalla (50 year member)

Prof Mangesh D Teli (head of UDCT University Dept of Chemical Technology Matinga, Mumbai where Dr Holme lectured to SDC members of UDCT  ALUMNY