Sons India Software Pvt ltd interview questions

I had applied through online in the job posting After screening the resume Sons India conducted two rounds of interview for me one is Technical Round and HR Round and issued the offer letter

It is a lengthy and difficult process, as a senior software developer they expect to write the code also, they also ask questions on cross platform, what the other technologies you know apart from Java, how to do cop if we give you the cross platform technologies, how long it ll take you to update