[5] After watching the movie eminent German filmmaker Wim Wenders commented that "Wagah is a manifesto against walls that divides people.
[7] Sen is a Berlinale Talent (international young filmmakers program by Berlin Film Festival).
[citation needed] Alongside directing, he also produced the TV/web series Kaali and Feluda.
[10] He has received grants from Sundance Documentary Fund, Jan Vrijman Fund (IDFA) and Asian Cinema Fund (Busan International Film Festival), DMZ Docs Fund several times and worked with NHK, DW TV, Planet, Goethe Institute, Films Division, PSBT and German, French American and Japanese producers.
[22] A retrospective of his films was organized by IDSFFK and SiGNS (Kerala), Persistence and Resistance (New Delhi), International Documentary Festival (Chennai).