Hi,
1. if he has been terminated under the suspicion once the matter was cleared they should have reinstated him.
2. If he was found not guilty or right now there is no allegation and charged under penal code against him, he should ask for compensation for the harassment, loss of job, payment and mental agony he suffered.
3. Now he should send a legal notice asking for his salary dues and service allowances as per the service rules which was offered to him ,along with compensation for false allegation , mental agony loss of payment etc.
4. He can approach a labour tribunal with his complaint and proceed further , if the legal notice is not responded in his favour by the company.