India and the US extended bilateral defence co-operation for another decade and agreed to jointly develop and build four defence systems during President Barack Obama's three-day New Delhi visit that ends on 27 January.
"We have renewed our Defence Framework Agreement and decided to take our growing defence co-operation to a new level," said Indian Prime Minister Narendra Modi on 25 January at a joint press conference with Obama following a day of meetings.
"We have agreed to pursue co-development and co-production of specific defence projects. These will help our domestic defence industry and expand [indigenous materiel] manufacturing."
Obama is the first US president to be chief guest at India's showcase Republic Day military parade, held every year on 26 January.