Hi Pavan, Thanks for such an insightful question. We had our existing mobile site and had to ensure the transition is flawless for users considering the aspects of internal redirects and SEO so we had to experiment with some POC’s before we could go ahead and implement production ready code. The overall time would be around 3 months, but the majority of work was done in around 2 months.
The UX was pre-decided before the actual implementation but there were few minor iterations as we went along. As a matter of fact the time period of 3 months included that.