Increasing authorised capital

No, there is no need to file any Form SH 7 for increase in the authorized share capital at the time of post merger. As at the time of merger there is the concept of single window clearence, so SH 7 would not be filed.  The Complete scheme of merger along with the copy of board resolution shall be filed with ROC indicating the authorized share capital of pre merger and post merger in Form GNL 1 .  Mandatory attachments include Scanned copy of Board Resolution, Scehme of merger, second motion application to authority.

After the order of the appropriate authority , the order has to be filed in Form INC 28 within 30 days of order

THEN HOW AUTHORIZED SHARE CAPITAL WILL INCREASE POST AMALGAMATION ON MCA. IN THE BOOKS OF THE COMPANY AUTHORIZED SHARE CAPITAL WILL INCREASE POST AMALGAMATION AS CAPITAL OF BOTH THE COMPANIES WILL GET CLUBBED. 

PLEASE CLARIFY HOW THIS WILL BE EFFECTED ON MCA

While filing form INC 28 i.e by filing court order to ROC, all the attachments including scheme of merger/amalgamation and details of authorized capital is annexed as an attachment while filing court order to ROC. So no need to separately file form SH 7 for increase in the authorized share capital of the Company.