Have some queries regarding to court marriage procedure

Respected Sir/ Ma'am, My Name is Nandni Singh , basically I am from Uttar Pradesh living in Pune since 2021 june then for six months I went to UAE and now I am back in Pune in month of August. My boyfriend name is Krishna Ganehswala we are living together in PCMC and in my family my sister knows it and in his family everyone knows about it that we are living together.( I don't have parents) . My age is 22 and he will be of 24 in this July current 23. We are planing to have court marriage by the end of this year as he is planning to go USA for higher studies. Is that we want that surety & security for each other that yes we are together. We are not going to tell this to our families as they are already agree for our marriage but in a traditional way and it will be in year 2028 or 2029 ... The thing is I reached you by watching your video on YouTube and you people sounds really genuine so i just wanted to know about the total cost for the court marriage?