Can I approach Supreme Court for delay in High Court?

I filed a writ petition in the High Court and submitted additional records, including RTI information obtained from the respondents, which clearly proved that all the statements made by the respondents were false. These essential additional records were duly submitted in the High Court but were not presented before the Single Judge. This fact was later disclosed by the High Court CPIO in an RTI reply after the dismissal of my case. The case was dismissed by a common order based on facts taken from a different case. After dismissal, the respondents also admitted in an RTI reply (given after a notice from the CIC) that my case was different from the other case. The final order in my case simply states: "See order in WP No. ___". I filed an appeal before the Division Bench (DB), which directed the respondents to clarify how my case was erroneously clubbed with a different case. However, for the past 7 years, there has been no submission or further action in my case. Please advise whether I can approach the Supreme Court seeking a direction to the High Court to decide my case within a fixed timeframe, since it has been pending for 14 years — 7 years in the DB — without any fault on my part. My career has been adversely affected due to this long delay.