India and Russia will hold detailed discussions on deepening military co-operation in New Delhi today. <br/><br/>Joint production of fifth generation fighter aircraft, upgradation of Su-30 MKI planes and firming up the contract for the S400 Triumf air defence system will come up during the talks. <br/><br/>Defence Minister Manohar Parrikar and his Russian counterpart Sergei Shoigu will co-chair the meeting of the Indo-Russian Inter-Governmental Commission on Military Technical Co-operation. <br/><br/>The two leaders will have restricted meeting followed by delegation-level talks.<br/><br/>It was during a meeting of the commission in Moscow last year that both sides had firmed up plans to acquire the air defence system and other deals which were recently signed on the sidelines of the BRICS meet in Goa.