Hello Alok

Clearly this should have been your own call but a little help from my side to help you with this

Consider following factors before choosing one

• Course content
• Practise tests
• Personal assistance
• No of Students in classroom
• Proximity of coaching classes to your home in Chennai
• Financial situation

My personal choice on the basis of these factors would have been AAKASH.

They offer Quality content, enough practice in the form of weekely , monthly grand tests and an all India practise test series based on recent NEET pattern.
Also one to one problem solving is great by the facilities.

And if you have already taken DLP from Allen then rather you should avoid getting into further classes. Rather focus on that content and do well.

Choice is yours all the best.
It is you, you and only you who can get into Medical entrance.

Choose aakash. As far as Iknow akash is better . But if you have taken allen dp you dont have to go to any other coaching centre . Just revise the previous years question papers . All the best :)