authorised capital

Increase in authorised capital requires shareholders approval. You being the majority shareholder (holding more than 51% of shares), without your consent auhtorised capital cannot be increased.

However increase in paid up capital within the ASC is very much possible.  Check your articles, if it contains any restrictions on allotment of new shares. Many private companies incorporate some clauses restricting allotment or transfer of shares to third parties without making offers to the existing shareholders. If you have any such articles in your AOA, then they have to offer new shares to you.

Agree with Jayashree

Furter, please check the applicability of right issue if Pb company.

Further to check the increase of PUC in future, please amend the AOA incorporting it as "RESERVE MATTER". Further being the holding company, you must have the majority of directors on the board.

Regards- Sudhir