Paid up share capital

In a company, the authorised share capital was Rs. 10 lakh and the paid up share capital was Rs. 6 lakh. Shares were partly paid up. The shareholderes have now paid the remaining Rs. 4 lakh. However, no filing has been done with the ROC / MCA to inform that the paid up capital has now become 10 lakh. The website still shows that the authorised share capital is Rs. 10 lakhs and the paid up capital is 6 lakhs. What form do I need to file with the ministry to show payment of the remaining Rs. 4 lakhs and declare that the shares are now fully paid up? Thanks!