Dear @Fayaz
Since repeated grievances on CPGRAMS and LG Grievance Portal have failed to yield action regarding the canal encroachment in Akingam, you should now file a written complaint with the J&K State Vigilance Commission or Anti-Corruption Bureau (http://jkacb.nic.in), citing negligence and non-compliance by the department. Also, consider filing a Public Interest Litigation (PIL) in the J&K High Court for stronger legal enforcement.
To file an RTI, read, How to write an RTI Application (Format)?
If still need help, reply to us.