6-Year ROC & last year ITR Filing and Audit of 25-26

Hi, I have 6 years ROC filing pending and I need to file ITR of this 25-26 and also to final books of 25-26. I have turnover between 50 lacs to 1 cr. Not much transactions. I won't be able to pay much but whatever best I will do. Your work will be verified by someone and then final payment will be made. whatever adjustments you do, needs approval. ROC OF LAST 6 YEARS ITR OF 25-26 BOOKS FINAL AUDITED 25-26