Case of 420 after 10 years wrongly admitted by JFMC

One of my relative was into gaming animation field and was running institute in India(delhi) and Canada. More than 400 student in India and 50 from Canada has studied in his institute. One of the applicant in 2006, who was from south India, applied for study in Canada and filled the form and gave partial fee of first year through bank directly to Canada. As per agreement he was supposed to get back part of his fee , incase his VISA was rejected 3 times in a row. Unfortunately his VISA was rejected but he did not applied again for the same. Due to his action , the batch size remain less than optimum and caused financial loss to my relative. After 10 years , this guy has filed case u/s 420 and other against my relative, wife , brother and bhabi at his native place in South India. Probably the summon issued could not reach to them due to change in address in10 years and later non-bailable warrant were issued. Now 2 technical question arises 1. How can court admit a case u/w 420 after 10 years ? Is there no time limit for these complaints ? 2. How this case can be filed in South india (Ernakulam) when the accused was not there and fund was xffered to Canada through bank ? 3. This guy has failed to complete his obligation of applying for VISA at least 2 times more , incase of rejection by authorities on which my relative has no control at all ? 4. The rule of the institutes are formed by Canada Govt and has to be followed by all and student welfare is protected by virtue of the fact that part of the fees of every student there goes to govt account as security .Thus my relative was doing all the business legally and as per govt rules and policies. 5. How court can make party other 3 persons when the fund was sent in institute account and other were just employees or close relative of my relative. 6. Can he appeal in SC against JFMC as visiting JFMC will result in lot of expense and logistically difficult .