Company denied maternity benefit and experience letter.

I have worked for 2 years in an IT company in Mohali which have strength of more than 70 people.My company denied the paid meternity leave. I have informed the company via email and speed post about my pregnancy and asked for the paid meternity leave. But they have not replied to anything and also not given me the paid maternity leave. They even tried to terminate me and started harassing me so that I can leave the company. I have all the proofs against them. Now they are not even giving me the experience letter . I have even sent them legal notices and filed a case with labour inspector in August. But till date, they have not even presented before the labour inspector and not submitted any reply. Now it's January 2024 and I have filed a complaint in August 2023. I worked in the company till July 31 , 2023 and i delivered the baby on August 6 , 2023. Please let me know what I can do so that I can get experience letter and paid maternity benefits under maternity benefits act 1961. What all can I do ? And where can I file a complaint. Thank you