BACKGROUND Concurrent chemotherapy is a well-established treatment modality for locally advanced head and neck cancer. The concept of concurrent chemotherapy and radiation was introduced in an attempt to improve the local control and possibly influence the survival because of the high rate of local and distant failures observed with the combination of surgery and postoperative radiation. The relevance of this study was to assess the efficacy of our treatment and patience compliance and also study the effect in patients treated with cisplatin based concurrent chemo radiotherapy in advanced head and neck cancer. METHODS The prospective study was conducted in the Department of Radiotherapy, Government Medical college, Thrissur, Kerala comprising the newly diagnosed patients with locally advanced head & neck cancers over one year. Conventional radiotherapy with a dose of 66 Gy in 33 fractions over 6.5 weeks was given concurrently with Inj cisplatin 100 mg / 2 IV every 3 weeks and periodically followed up for one year. RESULTS This study revealed that complete response rate was higher in 61 – 70 year age group compared to lower age groups. Complete response cases were slightly higher in T1 disease compared to higher stages. Regarding nodal status, complete response and DFS were more in N0 tumours and worst in N3 tumours. It was found that complete response rates were slightly higher in stage III than stage IV. Comparing the grade of the tumour, complete response cases were slightly higher in WD and MD compared to PD. Complete response rate and disease free survival (DFS) were slightly higher in cases who had more than two chemotherapy cycles compared to one cycle. CONCLUSIONS Concurrent chemo radiation was not well tolerated in our study group. Only 23.5 % patients were able to complete the planned treatment. The positive side was that complete response was found in about 79.4 % of study patients & DFS at one year was 80 %. KEY WORDS Concurrent Chemo Radiation, Head and Neck Cancer, Cisplatin