i have installed RDi 9.5 version in my system. I want to install RTC and use the same via RDI. Plase help me to install RTC

RDi 9.5 seems to integrate with RTC 6.0.4. See the clarity report below under "Supported Software" tab and "Development Tools" section.

RTC 6.0.4
https://www.ibm.com/software/reports/compatibility/clarity-reports/report/html/softwareReqsForProduct?deliverableId=37CAEBB0E49E11E69CCD7F0385C6524D&osPlatforms=AIX|IBM%20i|Linux|Mac%20OS|Windows|z/OS&duComponentIds=D006|D005|D003|D004|S001|S002&mandatoryCapIds=30|9|24|35|13|132|42|16|26|40&optionalCapIds=133|135|7|5|12|1|187|74|136|19|137|27|4|223#!

See this help for more information:

Integrating Rational Team Concert and Rational Developer for i
https://www.ibm.com/support/knowledgecenter/SSCP65_6.0.4/com.ibm.rational.rtc.rdp.doc/topics/rdirtci_int_overview.html

To be able to use both products in the same Eclipse at the same time you need to shell-share them. See below for details:

IBM Software products installed together that share a common environment
http://www.ibm.com/support/docview.wss?uid=swg21279139

The two main options are to use IBM Installation Manager to install or p2 install. Looking at the help, it seems to be suggesting to use p2 installation. I would suggest p2.

1) Obtain RDi 9.5 Eclipse client.
2) Install RTC 6.0.4 (or 6.0.x) using the p2 media into the same Eclipse client using Help > Install New Software

p2 Install Repository
https://jazz.net/downloads/rational-team-concert/releases/6.0.4/RTC-Client-p2Repo-6.0.4.zip