Hi dharam , See for a good future in QA you should be good at manual and automation both so if you already working in automation and now switching to manual so dont stop practicing . In manual you would be more richer in domain knowledge and in this time market needs that kind of guys which are expert in manual as well as in automation also. For automation , learn selenium which is open source and mostly used by many companies QTP is also a good option so learn both tool , these are very relevant and you can lean both easily.
All the best !
All the best !