The academic community in West Bengal is under severe attack under the Mamata regime. Earlier, college principals were beaten up by TMC activists within college premises. A professor was arrested for circulating cartoons. Another young scientist was arrested and put in jail by the TMC government for protesting against eviction of slum dwellers at Nonadanga in Kolkata. He is still languishing in jail for participating in a peaceful, democratic procession. We reproduce here the text of the letter by eminent scientists to the PM, protesting against the arrest of Dr. Partho Sarothi Roy, a young molecular biologist.