Brutality and Physical assault against senior citizen

Dear Sir, My Father who is a senior citizen with 69 years of age is physically assaulted by my neighbor having 35 years of age. On a minor confusion ,he started banging our doors and when my father went out he along with others had beaten him brutally , he was bleeding profusely and his eyes had completely black and blue circle all over( We have all relevant pics of his bleeding ,blood all over the floor etc). I came out little late and by that time my father was thrashed, post which both of us had the fist fight but neighbors came in between for rescue.and further police was called and all three of us were taken for MLC and further SHO of the police station has told us for FIR after 6-7 days. We approached DCP of the area and post his intervention FIR was lodged with sections of 323/341/506/34. MLC for all three has come non-Grievous. As MLC's are non-grevious and further sections are bailable ,everybody is insisting us to go ahead with the compromise as there are inherent legal delays in Indian court proceedings,even court proceeding will further lead to compromise of both the party's and will be a waste of time,money and energy.Suggestions like "Nothing will happen in this" has come from SHO as well as People around. It is extremely painful situation and i have a feeling of helplessness towards my father who happens to be my role model and is a completely humble and law abiding citizen of India . Kindly suggest suitable course of action,is there a possibility of arrest at the time of charge sheet filing,TAT of the case and other important details which you feel are important to share. Regards Allan (PS: Pls share your telephone numbers in reply)